This rich terra cotta premium quality self-hardening clay is formulated for hand-building, sculpture and wheel throwing. Model objects that resemble Native-American or Mexican Pottery with little or no decoration necessary. Pieces dry hard and durable, but are not waterproof. Keep unused clay in a plastic bag or wrapped in damp cloth to prevent drying out. It will shrink during drying, so it is best to hollow out bulky sculptures or wrap a slab of clay around a loose crumpled paper armature before modeling. Allow the finished piece to dry slowly and evenly on all sides at room temperature and away from heat until hard. When piece is completely dry, decorate with AMACO® Rub 'n Buff®, school paints, temperas, acrylics or liquid crayons. Details:25 lbsDurable, self-hardening clayMoist, ready-to-useCan be paintedACMI AP; conforms to ASTM D-4236/LHAMA