Spin-BallsAges 6+ WARNING: CHOKING HAZARD Small Parts. Not for children under 3 years. Create glowing light trails at night with Spinballs LED Poi! Poi is Maori for "ball on a string." This set of glow poi are attached to adjustable leashes and light up the entire spectrum of the rainbow! Spin them around in rhythmical and geometric patterns to create a visual effect. To help you get started, download the app to learn the moves & motions! Changes colors and