JAM Paper Brown Kraft 7.5" x 10.5" Open End Envelopes feature a light, basic, and versatile brown kraft color that makes them excellent for a wide variety of home and office mailing purposes! This pack contains an even total of 100 envelopes. Each one has straight flap opening and a reliable gum closure to keep the items placed within secure as they travel through the mail. These envelopes are made out of smooth, high-quality, 28 lb. paper. These versatile envelopes are great for a wide variety of home and office mailing needs! Use them to send letters, documents, cards, invitations, informational packets and more. Details: Brown Kraft 7.5" x 10.5" 28 lb/75 gsm Straight flap opening Gum closure 100 envelopes Recycled manila paper