The MOTIV Jackal EXJ 15 lb Pearl Reactive 4000 Grit Drilled Bowling Ball in White/Gray is a high-performance bowling ball designed for medium-heavy lane conditions. Made from reactive resin, this asymmetrical core ball features a .054 differential and a 2.47 RG. With a 4000 Grit LSS finish, this Ten-Pin Bowling Ball offers excellent performance on the lanes for serious bowlers. The 1-year manufacturer warranty ensures durability and quality, making it a top choice for competitive players.