HORSE HEADS 4 Asstd 1/2" Decal 64 pieces. Water slide decals. Soak decal in warm water for approx 15-30 seconds. Paper will curl, but will then uncurl, thats when the decal can be removed. The decal will slide off the paper and can then be applied to ceramics, glass, metal, or any smooth surface. When applied, smooth out from the center to remove trapped air and water bubbles under decal. I used to fire ceramics many years ago which I dont anymore, so I am selling off my unused craft supplies including these water slide decals.