More than the bouncing balls you've made before, this cool kit comes with differently shaped molds (includes spherical). Experiment with different shapes then turn off the lights... our PowerBalls glow in the dark! The kit comes with four molds and enough materials to make twenty PowerBalls! The balls bounce more than 15 feet! Includes Neon and Glow-In-The-Dark crystals and four different reusable mold shapes. Simply pour the crystals into a mold, hold the mold under water, and when the mold is opened, the ball is ready to bounce. This kit is a terrific introduction to a polymer unit or lesson. Kit makes 20 PowerBalls with 4 moldsRefill Kit (sold separately) contains enough materials to make a dozen more Neon and Glow-In-The-Dark Super PowerBalls! Contains polymer crystals only, no additional molds.
Want only round? Check out our All Round Kit.