About this item Size: #1 Coin envelope 2.25 inches x 3.5 inches, perfect for storing coins, change, keys, seeds and stamps and other small items Kraft Paper: 600 pcs small envelopes are made of sturdy kraft paper that resists wear and tear Gummed Flap: Mini coin envelopes are water-glue sealed, so when you place small items in the envelope simply wet the flap with a small amount of water, fold and hold for 2-3 minutes to seal. Strong adhesive for convenience and security Easy To Write: Coin envelopes have plenty of blank space to write the name or number of the item. This is a great way to organize and identify Multiple Uses: Not only can you use the coin envelope at home, but also in the office. Use coin envelopes to store seeds, stamps, coins, change, keys, jewelry, SD memory cards, buttons, pins, screws and other small objects