Made of heavy-duty plastic with snap-together tubes and chutes, this kit includes plenty of marbles for hours of building and rolling.

The HAPPY HOOP has an innovative new design which allows for the full adjustment of both ring size and weight. Eight colorful ring-pieces can be added or subtracted to created the perfect hoop-size. The unique molded curves each ring-piece increases grip and controllability while massaging the waist, stimulating blood circulation.