Perfect for all brands of oven bake clay - the sculpey tools nesting graduated tear drop cutter set is perfect for use with not only sculpey oven bake clay, but you can use with all other brands of polymer oven bake clay ! The stainless steel rolled top edge of the round cutter set makes it easy to hold without hurting your hands. The sharp bottom allows you to cut different shapes quickly and easily. Can be used with all types of clay including polymer oven-bake clay, air dry and non dry! H29tips for using the sculpey tools nesting graduated tear drop cutter set - round the edges to cover the clay with plastic wrap and then use the cutter