Bulk sublimation keychain blanks: Includes 25 rectangle, 25 oval, 25 heart shape, 25 Round shape double sided mdf sublimation keychain blanks, along with 100 key rings and 100 plastic clips and you can create personalized keychains for yourself. Instructions for use of sublimation jewelry blanks:Simple operation, just adjust the temperature of the transfer machine to 356-374℉ gently and wait 40 s for the transfer to complete and you get a beautiful sublimation keychain. Premium material: These sublimation keychain blanks are made of sturdy medium-density fiber hardboard, which is sturdy and not easily damaged. coating on comes with protective film. mdf material is , thermally conductive, fade-resistant. Personalized gifts: double sided design allows you to perform heat transfer printing on both sides of the sublimation keychain board to easily create diy personalized gifts, also an excellent choice for making crafts to give to friends. Please check as much as possible to make sure the