SCULPY-Eraser Clay Set One Ounce. Amazing Eraser Clay is oven-bake modeling clay that becomes a real eraser after it is baked in the oven for 10 minutes. Clay can be molded, sculpted, stamped or patterned to create a vibrant collection of usable erasers. Includes four one ounce pieces of clay and instructions. Made in USA. Recommended for ages 8 and up.