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Your cart is empty.Columbian #10 Security Envelopes are the perfect all-purpose envelope for letter-sized business documents. Each #10 envelope is 4-1/8 x 9-1/2 inches; designed to fit a letter size sheet (8-1/2 x 11 inches) folded into thirds. Security tinted envelopes have a scrambled blue pattern printed on the interior that conceals the contents. The Release & Seal strip peels right off so you can press to seal without any moisture. These self seal envelopes are inkjet printer compatible, though not recommended for a laser printer (use address labels instead). 24 lb white wove paper with side seams give these business envelopes a professional appearance. Overall envelope dimensions are 4-1/8 x 9-1/2 inches. White. Box of 500.
Daineris
July 31, 2025
I loved this purchase, very good price + quality + quantity ratio
Terri Jo
July 5, 2025
These are nice envelopes... nice with self adhesive. Good price.
Jdmkicks
May 22, 2025
I write 100 letters a week for my job and this maximizes my value per letter great quality, great stickiness.
Angela Gilliland
May 14, 2025
Great value for the cost. These envelopes seal well. They are thick and you can’t see through them.
Vincent Nguyen
April 9, 2025
It is cheap and good product.Thanks
Maria Teresa Martinez Sanchez
March 29, 2025
I ordered these envelopes for work, they arrived quickly and in very good condition.
A D RESOURCE
March 25, 2025
Excellent Value! Arrived on time and was exactly as advertised.
Dayana Andrade Tamayo
March 18, 2025
The media could not be loaded.
Adrienne
January 16, 2025
Super good quality!
Jacqueline Gosselin
January 15, 2025
super
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