Features: Durable and practical: The surface is not easy to blistered and wrinkled, waterproof surface, and the color won't fade when encountering water, the keychain is large enough to hang your crafts. Easy to color: These unfinished blank keychain are nice to paint, stain and embellish in any way, allows you to express your making ability. Sublimation Guide: Temperature: 356℉-374℉ (180℃-190℃ )/ Time: 50 seconds. Specifications: Material: medium density fiberboard, metal Color: as the picture shown Size: as the picture shown 2 Styles: round, square Quantity: 40 PCS, 20 PCS for each style Package includes: 40 x Keychain for heat transfer Notes: Please allow slight error on size due to manual measurement.