100 No. 10 Self Seal Security Envelopes - Designed for Secure Mailing - Security Tinted with Printer Friendly Design - Number 10 Size 4 1/8 x 9 ½ Inch (100 Pack)
Inhouse product
- Perfect for secure everyday home and business mailing. Our Security #10 Windowless Envelopes perfectly fit standard 8.5’’ x 11’’ paper sizes and other large documents. Easily fits invoices, letters, checks, and more.
- Provides complete mail security. No need to worry about others seeing your documents, our dark black security tint completely hides you mail.
- 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.
- Easily print name or logo on our low profile envelope design. Our Printer friendly envelopes with smooth thick paper saves you time and frustration while printing without having to worry about jamming. These envelopes are designed for both Laser and Inkjet Printers.
- Easily store and quickly use our 24 LB white wove envelopes with our 100 count value pack with small package design
| Brand | Blue Summit Supplies |
| Color | White |
| Closure Type | Self-Seal |
| Occasion | Everyday |
| Material | Paper |
-
andrejcenkomatvej309@gmail.com
08-03-2026Enveloppes opaques et solides. Fermeture autocollantes. Excellent rapport qualité/prix.
-
belindJacobshp885@gmail.com
08-03-2026I dislike absolutely nothing! These envelopes are great. The paper is strong, peeling adhesive better than licking glue and the black privacy is wonderful. I wish I had purchased these envelopes long before this. I will purchase them again when I run out. 100 envelopes will take a little time to run out for me. I am glad I will not have to buy any envelopes from anywhere else anymore. Like I said, wish I had bought them before!
-
yaoiakouhautq@gmail.com
08-03-2026Great quality paper! These envelopes have self sticking closures. And are nice business envelopes
-
测试2
08-03-2026Good envelopes with self stick that stays closed
-
oumedadauda@gmail.com
08-03-2026a good product at a reasonable price
-
monlisajosephine@yourdomain.com
08-03-2026Good quality good office envelope
-
mumu11711@outlook.com
08-03-2026I live in a travel trailer. If you know anything about travel trailer’s, then you know that they hold humidity in really well. My first winter living in this trailer, all of my regular envelopes sealed themselves due to the high humidity in my trailer. So I had to buy envelopes that wouldn’t seal themselves. I lost a lot of envelopes because of this. The new envelopes that I bought are simple and easy to use. Plus, they don’t seal themselves in my humid trailer. These new envelopes work great in my environment!
-
cmoen@fay.biz
08-03-2026I used these envelopes for mailing out tax receipts. Perfect choice with the adhesive strips andthickness of the paper.
-
cbekaterinajenniferon5495@gmail.com
08-03-2026Easy to close security envelopes (no licking required) and a good value for the price.
-
wolff.audrey@hotmail.com
08-03-2026This has been a very nice envelope for my needs.
-
gene@microsoft.com
08-03-2026High quality paper. Good size adhesive strip. All for a good price
-
nora.herman@reilly.com
08-03-2026Great product at a reasonable price. We buy This product frequently frequently
-
plbshqwzxzhisv88@gmail.com
08-03-2026They look to be fine.
-
and******
Enveloppes opaques et solides. Fermeture autocollantes. Excellent rapport qualité/prix.
bel******
I dislike absolutely nothing! These envelopes are great. The paper is strong, peeling adhesive better than licking glue and the black privacy is wonderful. I wish I had purchased these envelopes long before this. I will purchase them again when I run out. 100 envelopes will take a little time to run out for me. I am glad I will not have to buy any envelopes from anywhere else anymore. Like I said, wish I had bought them before!
yao******
Great quality paper! These envelopes have self sticking closures. And are nice business envelopes
测******
Good envelopes with self stick that stays closed
oum******
a good product at a reasonable price
mon******
Good quality good office envelope
mum******
I live in a travel trailer. If you know anything about travel trailer’s, then you know that they hold humidity in really well. My first winter living in this trailer, all of my regular envelopes sealed themselves due to the high humidity in my trailer. So I had to buy envelopes that wouldn’t seal themselves. I lost a lot of envelopes because of this. The new envelopes that I bought are simple and easy to use. Plus, they don’t seal themselves in my humid trailer. These new envelopes work great in my environment!
cmo******
I used these envelopes for mailing out tax receipts. Perfect choice with the adhesive strips andthickness of the paper.
cbe******
Easy to close security envelopes (no licking required) and a good value for the price.
wol******
This has been a very nice envelope for my needs.
gen******
High quality paper. Good size adhesive strip. All for a good price
nor******
Great product at a reasonable price. We buy This product frequently frequently
plb******
They look to be fine.
Previous page
Folders
Envelopes
School Supplies
Tape
Next page#10 Business Envelopes with Security Tint and Secure Seal
Blue Summit Supplies Secure Seal Types
Compare Blue Summit Supplies #10 Business Envelopes
It’s no secret that #10 security envelopes are the workhorse of business mailing, and we’ve designed our standard #10 envelope to keep your documents safe and secure behind a strong permanent seal throughout transit. Our most popular business envelope is made from a durable 24lb white wove paper and comes equipped with a low profile flap design. Easily fold and stuff up to 10 sheets of standard letter size paper inside with room for a #8 or #9 return envelope – so you can make it simpler than ever for your clients to quickly return payments to you. And with our dark security tint lining the inside, your confidential mail will stay concealed and secure all the way to its destination. It’s an envelope choice that’s simple enough for everyday letters and statements, yet professional and secure enough for high-profile business communications.
Simply pull the backing off the envelope's flap to reveal an adhesive strip that can be folded over and pressed down to seal contents safely inside.
Moisten the strip of adhesive found on the envelope's flap and fold over to seal contents securely inside.
No moisture is required, just flip up the bottom flap, fold over the top flap and press to secure contents safely inside.
Related products
