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. Just throw the ball as though you were skipping a rock and watch as it bounces far across the pool. The harder you throw, the better the Big Kahuna will bounce. So give it a try and catch it if you can. The Waboba Big Kahuna is intended for water use only, so please avoid bouncing this ball on hard surfaces. The Big Kahuna is not a pet toy and is not suitable for children under 3. Waboba began as ''the ball that bounces on water.'' Today, Waboba balls are bouncing on every continent. Our goal is to connect people through fun, because when you're having fun with others, your differences disappear.