Sublimation way: get your favorite or meaningful pattern and print it on the aluminum board attached with the sublimation printer, then peel off the glue on the back of the metal board and onto the round keychain. Add images: Just use the sublimation printer to transfer your patterns and photos to create a keychain, as a gift to family, friends, and lovers. Multiple usages: Round heat transfer keychains are suitable for varieties of occasions, such as birthday parties, Mother's Day, weddings, summer camps, Christmas, Halloween and more. They can also be taken to decorate keys, bags, backpacks and other objects. Note: Print Tear off the protective film on the aluminum plate before, the suitable sublimation temperature is 360-380 degrees Fahrenheit for 60-80 seconds