Waboba unleashes your inner playful child! If you need a reason to be able to be outside and play in the sun, the Lava Ball is the rescue for you. Take it outside and watch the yellow lines turn red in the sun. The lava ball is made with UV color changing technology, so it can bounce really high! The ball is 6.3 cm. Suitable for children from 3 years. Age Recommendation: 3+