Maui's top-of the-line hoop. The well-known Hula hoop tire now comes as a Wave Hoop, because the plastic ring in a great glitter look is filled with water. While you are swinging with your Wave Hoop®, the water swings to the beat. So it gives you even more fun with Hoopen, whether inside or outside, alone or with your friends! The Wave Hoop tire provides plenty of fun for both small and big! Please be sure to note the warning for toys.