Innovative Kids Green Start Chunky Wooden Puzzles: Shape Parade Puzzle Packaged in a reusable carry-along storage case, these Earth-friendly puzzles are made with wood from sustainable forests. Chunky, raised pieces support basic grasping skills, combined with slight gradations of cognitive challenge. Created with the help of child development experts, green start wooden puzzles exercise skills that prepare children for reading, math, problem solving, and more. Each puzzle in this level reinforces a different developmental skill. Pieces are self-correcting and can only fit only into one spot. Names of shapes are printed under each piece.