AlphaMagnets and MathMagnets are shaped accurately with correct proportions, and are made with strong magnets for a 'sure stick.' Jumbo pieces are 2-1/2-inch tall for handling ease and tactile feedback for young children learning basic skills. Color-coded sets help teach differentiation with red math symbols and blue numbers (42 pieces). Includes math symbols, and comes in a durable, stackable tub with brightly colored plastic lid for convenient self-storage.