JAM Paper Black #7 Coin Envelopes measure 3.5 x 6.5 inches in size and are made out of 24lb, smooth, high quality paper. Each of these envelopes features a straight flap and a reliable gum closure to keep items secure in the mail. This pack contains a total of 500 envelopes. With a sophisticated and versatile appearance, these envelopes feature a jet black color that makes them great for use in any office or home. The size of these envelopes makes them ideal for cash, checks, tickets, receipts, and other small papers. Use them to keep track of small items like jewelry, photos, and more. These envelopes can be trusted for any applicable mailing or small item storage need! Size: 3.5in x 6.5in | Color: Black | Quantity: 500