The 15 lb. Hammer 3-D Offset Bowling Ball is a high-quality ten-pin bowling ball designed for competitive play. Made in the United States, this ball is drilled and approved by the United States Bowling Congress (USBC). With a weight of 15 lb., this ball is ideal for serious bowling enthusiasts looking to improve their game. Plus, with free shipping in the USA, it's a great value for anyone looking to upgrade their equipment.