These Kikanoid rubber keychain charms are super easy to use. Just attach them to your keys, backpack, or any other item you'd like to add a bit of fun to. When handling the charms, be gentle to avoid any damage. To keep them looking great, you can clean them with a soft, damp cloth every once in a while. Avoid exposing them to extreme heat or sharp objects as this could cause the rubber to melt or get scratched. Enjoy your new keychain charms!