These kits offer endless possibilities for games and motor skill activities. Modular, using the same set of dimensions, which means you can combine sets and gradually increase the difficulty of your exercises. Vinyl, fabric-covered, high-density foam pieces are perfectly safe for children. Includes: 1 bl/yellow trapezium (24"L x 24"W x 3"-12"H), 1 bl/yellow half circle (48" diameter), 1 green mat (72"L x 24"W x 3"H), 2 red U-shaped blocks (24"L x 12"W x 24"H) and an instruction booklet. Ground space required: 72" x 48". Ages 3-6."