Measure Up Stacking Cups - Washable

12 months & up. Stacking and nesting with additional early math benefits. Cups are volumetrically correct & sequentially sized for interaction. Designed with raised edges to make stacking easier, each cup is numbered and has a molded design on the bottom for dough or sand fun. Cleaning: Immerse in warm water, add dish detergent if necessary, air dry. Includes 12 pieces.