A. ZERO GRAVITY BOUNCE! Engineered to have high bounce. The lightweight Zero Gravity Foam is a very bouncy material. Until you bounce it far, of course. Say goodbye to small rubber balls and old pink super balls. B. CHANGES COLOUR IN THE SUN! Take the Waboba Lava Ball outside and the yellow cracks may turn red in the sun. The Lava ball has UV colour changing technology and can bounce quite high. C. 100% NON TOXIC! It is durable. The Waboba Lava Ball can withstand a lot of bouncing, sport uses, and indoor & outdoor games. D. PERFECT ANYTIME GIFT! A volcano - themed toy they can bounce! The Lava Ball is a fun bouncy ball with a color - change surprise. It is popular among toddlers, kids, and adults. Its size makes it a good stocking filler. E. FUN VOLCANO TOY! Suitable for volcano lovers. If you can't visit your favorite volcano, the Lava ball can be a nice volcano souvenir gift. F. Size 65mm