Waboba Pro Ball Individually Boxed PURPLE/BLACK _ Bundle of 4 Identical Balls Amazing Water Bouncing Ball. PURPLE/BLACK Color. Bundle of 4 Identical Balls Individually Packaged. Perfect for all calm water situations: Pool, Beach, Pond, Lake or Ocean. With a little practice one can skip the WABOBA ball across the water's surface. Great for a wide variety of in-water catch and toss games. Soft, spongey, slick nylon covered ball easy on hands and fingers. A delight to hold and catch.