Packing list: 40 pieces round sublimation blanks, 40 pieces chain key rings and 40 pieces open jump rings, enough quantity to meet your different needs Stunning Dye-Sublimation Blanks: You can DIY or print your favorite patterns on the of these sublimation keychain blanks via dye-sublimation technology, just beyond your imagination High-quality material: The sublimation blank is made of MDF material, which has a smooth and comfortable feel, is and has high hardness. It is an Perfect decoration for keys, bags, mobile phones, etc. Double-sided printing and protective layer: These heat transfer blanks are double-sided printed, you can create various images or patterns on both sides, smooth and easy to sublimate, perfect for improving experimental abilities and stimulating imagination Easy to use: If you want to transfer images or patterns on the sublimation keychain blank, please set the temperature of the transfer machine to 180 degrees Celsius (356 degrees Fahrenheit) for 35 seconds,