Safari Limited Energy Ball Connecting education and entertainment, the Safari Ltd Safariology Energy Ball lets you see and experience the fun and fascinating principles of electricity and conductivity. When you touch the balls metal strips, the ball lights up and creates sound. Make a chain for more interesting discoveries. For ages 7 and up. Dont tell, and dont just show - get involved with the Safari Ltds Energy Ball! Fun and amusing science right at your fingertips. Is great individually or for group activities and demonstrations. Link hands and feel the power and importance of being connected. Made with the same industry-standard quality of all Safari Ltd products. At Safari Ltd, we believe in toys that teach, and weve created our Safariology collection to promote both. Measurements are 6.36 x 3.67 x 2.07. Batteries included.