This Hammer bowling ball is a great addition to any vintage bowling collection. With its purple swirl color and 3-D offset model, it is sure to stand out on the lanes. The ball is drilled and has a mid-performance, making it perfect for any level of bowler. It weighs 15 lb 8.6 oz and is a ten-pin bowling ball. The ball is made by Hammer, a trusted brand in the bowling industry. It is a unique item with a unit quantity of 1.