Safe Teen's Boomerangs for LIGHT to NO WIND throwing! The Napa boomerang is available in 3 different colors and is designed for outdoor use or indoor use in an area the size of a gymnasium. These boomerang really need no wind at all in order to work well, or very light winds as they are very light and would blow around in higher wind environments. Throw almost down with lots of spin from an overhand position. They make good party favors and are fantastic indoors in a small gymnasium.