Watermelon Ball (This version of the product is discontinued by the manufacturer) A fun unique swimming pool game combining components of football, basketball, and rugby in the water! Can be dribbled like a basketball and passed underwater (can pass up to ten feet) Ball is made of a durable vinyl membrane that can withstand intense play Excellent game for pool parties and get-togethers with family and friends. Great exercise too! People of all ages can have fun with this ball