The Hammer Zero Mercy 15 LB Bowling Ball is a high-performance ten-pin bowling ball designed for serious athletes. Made of durable urethane material with a reactive resin coverstock, this asymmetrical core ball offers excellent performance on the lane. With a sleek design and undrilled features, this bowling ball is perfect for competitive play, backed by a one-year manufacturer warranty. Whether you're a seasoned bowler or just starting out, the Hammer Zero Mercy 15 LB Bowling Ball is sure to enhance your game and help you achieve your best throws.