Sublimation Keychain Blanks Set: The package includes 75 key double-sided keyboards, there are Round, Rectangle, Bone, Square, Heart five shapes, 75 plastic retaining clips, and 75 keyrings, making it very easy to assemble MDF Keychain: Double sided keychain boards are made of high quality MDF material with protective film. MDF material is , durable, easy to heat transfer, not easy to fade, portable and comfortable to handle, and can be made into a unique gift for your friends Sublimation Keychain Blanks Size: Rectangle 5.6x4/2.2x1.5inches,Bone 5x3.5cm/1.3x1.9inches,Round diameter 4.4cm/1.7inches,Square 4.6x4.6cm/1.8x1.8inches, Heart diameter 4.4cm/1.7inches,you can make a keychain as a bag decor, pet necklace, decor, luggage label, or make a unique handcraft for friends, which is easy to sublimate.(3mm thick 0f blank keychain) Easy to Use: You can set the temperature and time of the heat transfer machine to 190 / 374F for 40-45 seconds for heat press transfer. You need to remove the protective film on the surface of the keyboard before heat transfer printing. Both sides of the keyboard can be heat transferred, you can DIY your gift Colour:White Material:MDF Package Contents: 75 * key double-sided keyboards(Round, rectangular, Bone, square, heart-shaped, each style 15pcs) 75 * plastic retaining clips 75 * keyrings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.