The product is a new 15lb Hammer Full Effect bowling ball, designed for high performance in the sport of bowling. Made with urethane material, the ball features an asymmetrical core type and a polished finish. With a .050 differential, this ten-pin bowling ball is recommended by the United States Bowling Congress (USBC) and is undrilled, making it ideal for competitive play. The Hammer brand is known for producing quality bowling balls, making this product a reliable choice for serious bowling enthusiasts.