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Enveguard technology; in today's world where our health, at aimoh we approve only the highest quality products, privacy and security is so much threatened, the team of engineers and developers at Aimoh have researched and developed the EnveGuard Technology and Approval systems, produced from the best and safest material on earth.
Laser and inkjet printer compatible; premium construction measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for quick and easy addressing! Click the Orange Button to order now. 100 envelope pack; these envelopes are manufactured with a window-less front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack.

No need to worry about others seeing your documents, our dark black security tint completely hides you mail. Easily print hundreds of envelopes with our low profile envelope design.
Provides complete mail security. Our security #10 Windowless Envelopes perfectly fit standard 8. 5’’ x 11’’ paper sizes and other large documents. Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.


An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 3-5/8 x 6-1/2 inch envelopes.

Quick-seal closure; our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting.

Enhanced security: offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 4-1/8 x 9-1/2 inch envelopes.


There's no need to lick, glue, or tape, These regular Mead envelopes peel and seal with secure adhesive.
Made with the mead seal of quality - protect your mail without compromising quality. Each pack comes with 500 number 10 envelopes size measures 4 1/8 x 9. 5”. Great value for money - make sure you have a reliable and long-lasting supply of this office essential. These self sealing envelopes are created by Mead, a brand known for premium paper products and stationery.


Smaller #9 or #8 return envelopes will easily fit inside so you can get your invoices paid quicker. Quickly stuff multiple pieces of business mail into our wide opening #10 security envelope design with large flip-and-seal opening.
Provides complete mail security with no need to worry about others seeing your documents, thanks to our dark black security tint lining which completely hides your confidential mail. Designed for secure everyday home and business mailings, our windowless number 10 security envelopes are a perfect fit for standard 8. 5'' x 11'' paper sizes and other folded letter or legal size documents.
1. Aimoh
#ad
24 LB, White, No Window, EnveGuard, Size 4-1/8 X 9-1/2 Inches, 100 Count 34100, #10 Security Tinted Self-Seal Envelopes
#adAimoh #ad - Super security tint pattern; #10 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure mailing. Quick-seal closure; our #10 envelopes are designed with an ultra strong self-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting.Enveguard technology; in today's world where our health, at aimoh we approve only the highest quality products, privacy and security is so much threatened, the team of engineers and developers at Aimoh have researched and developed the EnveGuard Technology and Approval systems, produced from the best and safest material on earth.
More information #ad
Laser and inkjet printer compatible; premium construction measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for quick and easy addressing! Click the Orange Button to order now. 100 envelope pack; these envelopes are manufactured with a window-less front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Height | 2.2 Inches |
Length | 9.7 Inches |
Width | 4.3 Inches |
Part Number | 34100 |
Model | 34100 |
More information #ad
2. Blue Summit Supplies
#ad
10 Envelopes Self Seal Designed for Secure Mailing, 500 No. 10 Self Seal Security Envelopes, Pack of 500, Number 10 Size 4 1/8 x 9 ½ Inch, Security Tinted with Printer Friendly Design
#adBlue Summit Supplies #ad - Perfect for secure everyday home and business mailing. Easily fits invoices, checks, letters, and more. Our printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming.No need to worry about others seeing your documents, our dark black security tint completely hides you mail. Easily print hundreds of envelopes with our low profile envelope design.
More information #ad
These envelopes are designed for both Laser and Inkjet Printers. Maintains professional look and feel throughout transit with our durable 24 LB white wove envelope paper. Provides complete mail security. Our security #10 Windowless Envelopes perfectly fit standard 8. 5’’ x 11’’ paper sizes and other large documents. Just peel and seal to create a strong lasting seal without licking or moistening. Our self seal design is quick and easy and is guaranteed to stay sealed with no need for tape or glue sticks.
Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Weight | 0.01 Pounds |
Part Number | BSS-92588-009 |
Model | BSS-92588-009 |
More information #ad
3. Splendoress
#ad
500 Pack Windowless, Legal Size Regular Plain Envelopes 4-1/8 x 9-1/2 Inches, 24 LB Envelops, #10 Envelopes Letter Size Self Seal, Business White Security Tinted Peel and Seal
#adSplendoress #ad - High quality & bulk pricing - 24lbs high quality envelopes at a fraction of the price. X 9 1/2 in size envelop. Self seal envelope- just peel and stick 4 1/8 in. Can't see through envelopes - Security printing pattern on the inside prevents from seeing what inside.More information #ad
No need to lick the flap anymore - Very convenient. Windowless envelope. Ndaa section 889 Compliance Certfication. Long lasting supply - 500 count per box.Brand | Splendoress #ad |
Manufacturer | Splendoress #ad |
Height | 4.25 Inches |
Length | 11.5 Inches |
Weight | 6.06 Pounds |
Width | 10 Inches |
Part Number | #10 Security Envelopes Windowless |
Model | #10 Security Envelopes Windowless |
More information #ad
4. Quality Park
#ad
24-lb White Wove, 100/Box QUA10417, Quality Park #6 3/4 Self-Seal Security Envelopes, Security Tint and Pattern, 3-5/8 x 6-1/2, Redi-Strip Closure
#adQuality Park #ad - Store more, longer: reid-strip envelopes have a longer shelf-life thanks to the peel able strip that protects your adhesive from dust. Less yuck: we promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required.An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 3-5/8 x 6-1/2 inch envelopes.
More information #ad
Enhanced security: offer the protection clients deserve & protect yourself from liability; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. Save time with self-stick: quality park 6 3/4 Security Envelopes have a strong peel & stick closure that helps you fly through mailings in record time.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 2.44 Inches |
Length | 6.63 Inches |
Width | 3.75 Inches |
Part Number | QUA10417 |
Model | QUA10417 |
More information #ad
5. Aimoh
#ad
500 Count 34010, Windowless Design, #10 Security Self-Seal Envelopes, Premium Security Tint Pattern, Ultra Strong Quick-Seal Closure, Size 4-1/8 x 9-1/2 Inches, 24 LB, White, EnveGuard
#adAimoh #ad - Premium security tinted pattern; our #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, perfect for secure business and legal mailing while protecting sensitive information. Long lasting supply; large sized envelopes and 500 envelopes in every pack for a long lasting supply, perfect for everyday business correspondence and large mailing tasks!10 security tinted self seal envelopes; forget cheap envelopes that easily split and aren't suitable for secure mailing, our #10 envelopes are designed with a premium security tint to protect sensitive information and a super strong SELF-SEAL strip, perfect for larger documents.More information #ad
Windowless design; envelopes ideal for standard business & legal documents and sensitive correspondence, labeling or hand-addressing, perfect for quick, manufactured with a windowless front panel for easy printing, mass business mailings. Quick-seal closure; our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting.
Brand | Aimoh #ad |
Manufacturer | Aimoh #ad |
Height | 4.25 Inches |
Length | 11.5 Inches |
Width | 10 Inches |
Part Number | 34010-500 |
Model | 34010-500 |
More information #ad
6. Quality Park
#ad
Security Tint and Pattern, 4-1/8" x 9-1/2", 100/Box QUA69117, 24-lb White Wove, Quality Park #10 Self-Seal Security Envelopes, Redi-Strip Closure
#adQuality Park #ad - Save time with self-stick: quality Park 10 Security Envelopes have a strong peel and stick closure that helps you fly through mailings in record time.Enhanced security: offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 4-1/8 x 9-1/2 inch envelopes.
More information #ad
Store more, longer: redi-strip envelopes have a longer shelf-life thanks to the peelable strip that protects your adhesive from dust. Less yuck: we promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 2.03 Inches |
Length | 9.63 Inches |
Weight | 0.91 Pounds |
Width | 4.25 Inches |
Part Number | QUA69117 |
Model | QUA69117 |
More information #ad
7. Mead
#ad
45/Box 75026, Press-It Seal-It Self Adhesive Closure, 4-1/8" x 9-1/2", All-Purpose 20-lb Paper, Security Printed Lining for Privacy, Mead #10 Envelopes, White
#adMead #ad - Mead press it seal it number 10 security envelopes, 45 envelopes per box. Size: 4 to 1/8 inches x 9 to 1/2 inches. White envelopes with self adhesive seal, Security lining for privacy.More information #ad
Brand | Mead #ad |
Manufacturer | ACCO Brands #ad |
Height | 4.3 Inches |
Length | 9.7 Inches |
Weight | 0.02 Pounds |
Width | 1.5 Inches |
Part Number | 75026 |
Model | 75026 |
Warranty | kkk |
More information #ad
8. Mead
#ad
Windowless Mailing Envelopes, 500 Pack, 4 1/8 x 9.5'', TRTAZ11A-102021-v1, Mead Security Envelopes Self Seal #10
#adMead #ad - The solid surface makes it easy to print labels and addresses. With its thick and opaque material, these standard #10 envelopes keep contents completely hidden from outsiders. Windowless design - best for legal and business mail, these plain White letter envelopes are designed without any see-through panels for privacy.There's no need to lick, glue, or tape, These regular Mead envelopes peel and seal with secure adhesive.
More information #ad
Seal in seconds - these easy close self stick envelopes keep your mail secure and sealed conveniently. Secured envelopes - make it impossible for prying eyes to read your sensitive information. Made with the mead seal of quality - protect your mail without compromising quality. Each pack comes with 500 number 10 envelopes size measures 4 1/8 x 9. 5”. Great value for money - make sure you have a reliable and long-lasting supply of this office essential. These self sealing envelopes are created by Mead, a brand known for premium paper products and stationery.
Brand | Mead #ad |
Manufacturer | Mead #ad |
Height | 33.37 Inches |
Length | 33.37 Inches |
Width | 33.37 Inches |
Part Number | AST 2 |
Model | TRTAZ11A-102021-v1 |
More information #ad
9. Columbian Envelopes
#ad
6" x 9", Columbian Catalog Envelopes, 100 per Box COLO652, Release & Seal Self-Sealing Closure, 28 lb White Wove
#adColumbian Envelopes #ad - Peel the paper strip from your release & Seal envelope and press for Permanent closure; No moisture required. Value-packed boxes of 100 envelopes; stock up for home, Office and School. Columbian envelopes 6" x 9" Catalog envelopes are a safe, secure choice for smaller mailings.More information #ad
Top-loading envelopes make it easy to drop in flyers or other enclosures; ideal for flat rate mailings. 28 lb. White wove envelopes provide privacy, protection and durability; The perfect heavyweight stock for everyday business use.Brand | Columbian Envelopes #ad |
Manufacturer | TOPS Products #ad |
Height | 2.9 Inches |
Length | 9.4 Inches |
Width | 6.4 Inches |
Part Number | COLO652 |
Model | COLO652 |
More information #ad
10. Blue Summit Supplies
#ad
Blue Summit Supplies 500 Number 10 Envelopes Self Seal, Flip and Seal Flap, Number 10 Business Envelopes Letter Size, 4 1/8 x 9 1/2-500 Count, Security Tint
#adBlue Summit Supplies #ad - Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks.Smaller #9 or #8 return envelopes will easily fit inside so you can get your invoices paid quicker. Quickly stuff multiple pieces of business mail into our wide opening #10 security envelope design with large flip-and-seal opening.
More information #ad
Create a professional look for your mail all the way to its destination thanks to our durable 24 white wove paper and smooth front envelope with no windows. Provides complete mail security with no need to worry about others seeing your documents, thanks to our dark black security tint lining which completely hides your confidential mail. Designed for secure everyday home and business mailings, our windowless number 10 security envelopes are a perfect fit for standard 8. 5'' x 11'' paper sizes and other folded letter or legal size documents.
Brand | Blue Summit Supplies #ad |
Manufacturer | Blue Summit Supplies #ad |
Part Number | BSS-92588-033 |
Model | BSS-92588-033 |
More information #ad