This 15lb Storm Gravity Shift Bowling Ball has been drilled to enhance your bowling performance. Designed for serious bowlers, this ball is perfect for anyone looking to improve their game. The ball features a single drill, allowing for a personalized fit that will help you achieve your best throw. With its impressive features, this bowling ball is ideal for use in any bowling activity. The 15lb weight is perfect for serious bowlers who want to achieve their best performance. The Storm brand is well-known for its high-quality products, and this bowling ball is no exception. Get ready to take your bowling game to the next level with this amazing ball.