【Package Includes】- It contains 500 pack self-adhesive #1 Brown coin envelopes, each size is 2.25''x3.5''. 【Privacy & Security】- The Brown coin envelope are more elegant and have stronger opacity than traditional envelopes. 【Nice Quality】- Our coin envelopes are made of high-quality Brown kraft paper material, which has excellent wear resistance and is strong enough to store more items. 【Easy to Use】- When sealing, apply an appropriate amount of water to the water glue and press lightly for one minute. This effectively protects your items from exposure to moisture. 【More Freedom】- There is no text or pattern printed on the envelope, you can directly stick a small label or You can freely doodle and draw in the blank space and give full play to your talents!