#7 coin envelopes are great to hold coins, keys, electronic parts, and other small items. They can also be used to send important business materials. Coin Envelopes are sturdy, protective, and practical envelopes. All Coin Envelopes are open end, which means the flap is on the smaller side. These Envelopes are convenient and economical. They close securely with the featured gum closure and get the job done. There are many other things that these handy little coin envelopes are used for to make your life easier and more organized, like holding buttons, pins, and stamps. Imprint the envelope, to make it easy to fill out as well as making sure they get all the important information on the coin envelope.