Wide application, you can print different pattern on the appearance of these sublimation blanks keychains on both side the sublimation blanks keychain bulk suitable for diys sublimation Blanks keychains, zippers pulls, backpacks bag tages, ornament, gift tages, pendant decoration, and many other craft projects Sublimation setting, the heating temperature must be 180℃ 200℃ / 356℉ 392℉ and time setting should be 40 seconds better to preheats the sublimation blanks for 5 minutes before formal heating in order to reduce please note that do not heat the blanks for long time in case the blanks tattered Double side protective film, please note that all the sublimation blanks covered with protective film on both side that should be peeled off when you ready to use the blanks this protective layer keeping round sublimation blanks from being scratched or gets dirty Materials, sublimation blanks printable make from Blanks board that is nice hardness, not easy to break and deform, you can easily work with these sublimation blanks without worrying about any kind of tattered and deformation Sublimation Blanks, sublimation keychain blanks set comes with 20 pieces round sublimation blanks, 20pieces split chainrings and 20pieces jump rings.great for sublimation keychain projects and diys