Duck Walker Balance Board Set contains 6 colored boards that includes 1 each of red, yellow, blue, green, violet and orange. Board measuring 23-1/2" x 5" x 3-1/2" withstands 200 lb and allows children to rock from side-to-side, spin 360 deg on a smooth surface or walk like a duck. It offers both gross motor and vestibular exercise. It suits for upper-body development push-up type activities when hands are placed on the flat end panels. Board is molded from reinforced polypropylene.