A hula hoop is a toy hoop that is twirled around the waist, limbs or neck. Although the exact origins of hula hoops are unknown, 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 centimetres (28 in) in diameter, and those for adults around 1.02 metres (40 in). Traditional materials for hoops include willow, rattan (a flexible and strong vine), grapevines and stiff grasses. Today, they are usually made of plastic tubing.

Source: Vikipeida

http://en.wikipedia.org/wiki/Hula_hoop

More Hula hoop images and we have more than 350 like these, can be found here: http://www.webstockpro.com