HULA HOOP RING
A hula hoop is a toy hoop that is twirled around the waist, limbs or neck. Children and adults around the world have played with hoops, twirling, rolling and throwing them throughout history. Hula hoops for children generally measure approximately 71 centimeters (28 in) in diameter, and those for adults around 1.02 meters (40 in). Today, they are usually made of plastic tubing.