Just because the sun goes down, doesn't mean you can't continue the game. The Waboba Moonshine Bouncy Ball is a hyper bouncy ball that lights up in the dark and makes a pop sound when thrown. The bouncy ball is ultra-lightweight and aerodynamic making it easy to throw at speed. Bounce the ball to activate the built-in battery powered white strobe light. It will stay lit for 7 seconds between bounces.