4 1/8 x 9 1/2 - #10 Plain Self-Seal Business Envelopes with Security Tint 2500/Case

These business envelopes are made of sturdy 24 lb. woven paper with a super - white 84 brightness. They come in three closure types: Self - Seal, Gummed, and Redi - Seal, offering great convenience and variety for your mailing needs.

These business envelopes are really handy for sending out letters, invoices, or other important documents. To use them, if you've got the self - seal type, just peel off the strip and press to close. For the gummed ones, moisten the flap and seal it shut. The Redi - Seal type usually just needs a light press. When using these envelopes, make sure your items fit properly inside so the envelope can close easily. Don't overstuff them. To keep them in good condition, store them in a dry place away from direct sunlight. If you get them wet, the paper might get damaged and the seals won't work as well.