Waboba Big Kahuna Ball - Blue You'll have great big splashing fun with the Waboba Big Kahuna Ball that actually bounces on the water The 4'' Big Kahuna Ball is Waboba's biggest, most versatile ball yet, perfect for games in the pool, at the beach, or at the lake Throw the Waboba Big Kahuna as though you're skipping a rock, then watch it bounce across the pool (not for children under age 3)