With its wooden storage box, First Sound Blocks triples as building toy, game, and puzzle. Take the blocks out, stack, and build. Shake the blocks and sort those that make sound and from those that don’t, then play a simple sound matching game. Next place the blocks back in the box. There’s more than one way to solve this puzzle. Develops fine motor skills, eye-hand coordination, color, shape, and size recognition, sound discrimination, and problem solving. Storage box measures 9″L x 7″W x 2 1/8″ H.