JAM Paper Gray A9 Invitation Envelopes measure 5.75 x 8.75 inches in size and are made out of slightly textured 28lb paper. Each one features a straight flap and a secure moisture activated gum closure. The gray color of these envelopes gives them utility, versatility, sophistication, and an air of comfort all in one. Use these multi-purpose envelopes for invitations, greeting cards, personal letters, business letters, notices, and more! These envelopes are a useful and unique alternative to ordinary white mailing envelopes and will be noticed by recipients. Size: 5.75in x 8.75in | Color: Dark Grey | Material: Recycled Paper Send Colorful Greetings in Style Pair w/ shades like Dark Purple & Presidential Blue Perfect for Mailing & Crafting