Home > Business Mailing Envelopes > 500#10 Windowless Security Envelopes Self Seal, Peel and Seal, Security Tinted, Printer Friendly Design for Business, Dimensions - 4-1/8 Inch x 9 ½ Inch - Envelopes Letter Size for Mailing ; Blue Summit Supplies

500 No. 10 Self Seal Security Envelopes - 10 Envelopes Self Seal Designed for Secure Mailing

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20,207 reviews covering 50+ products for the category Business Mailing Envelopes

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About 500 No. 10 Self Seal Security Envelopes - 10 Envelopes Self Seal Designed for Secure Mailing
84% praised the high-quality paper, but 16% found it too thin
The paper has a nice, soft, smooth feel.
I am satisfied with the quality of the envelopes. They seem to be as good as major name brand envelopes for significantly cheaper.
The paper has a nice, soft, smooth feel and the flap sticks down just fine.
The envelopes have perfect quality with a pattern on the inside to prevent show-through. I also love the self-sealing sticker feature.
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85% appreciated the secure seal, though 15% experienced leaks
The security lining is great and it perfectly obscures confidential contents.
The self-sealing adhesive I bought is of good quality and much better than the name brand adhesive from the local store, which isn't strong enough to keep the envelope closed.
The envelopes have perfect quality with a pattern on the inside to prevent show-through and a self-sealing sticker feature.
The envelope has a thin body and the self-seal strip doesn't span the entire width.
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94% liked the added security features
These envelopes are security envelopes and it will be hard for people to read through them.
The security print on the inside of the envelope is more than adequate for sensitive items like checks and personal information.
84% loved the crisp printing quality, while 16% experienced smudging
The envelopes are thin and the self-seal strip stops short of spanning the entire width of the envelope.
I noticed that the envelopes do not seal all the way to the ends, which is important for letters with several pages. This could cause issues during transit. The envelopes do not seal all the way to the ends, which is important for letters with several pages. This could cause issues during transit.
96% liked the perfect size and fit, while 4% found it too snug
The envelope is thin and the self-seal strip stops short of spanning the entire width.
82% praised the envelope's tear resistance, but 18% experienced tears
I am concerned that the envelopes do not seal all the way to the ends, especially when I send letters with several pages, which may cause issues in transit.

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