POLYFORM-Oven-Bake Clay Kit: Eraser Maker. Create; bake; and play! Be cool in school with the fun erasers you can make! This 15 piece kit includes eight 1 ounce bars of Sculpey III oven-bake clay; easy-to-follow instructions; plastic needle tool; two pencils; two craft wires and two plastic clips. Conforms to ASTMD 4236. Recommended for children 8 and up. WARNING: CHOKING HAZARD: Small parts. Not for children under 3 years. Made in USA.