The Columbia Delirium Shock Bowling Ball is a high-performance ten-pin bowling ball made of urethane material, perfect for bowling enthusiasts looking for a reliable and durable ball. Weighing 15 lbs, this bowling ball is designed for optimal performance on the lanes, making it ideal for competitive play. Its unique shock feature helps to reduce hook motion and improve traction, giving players a competitive edge during gameplay. Whether you're a casual bowler or a seasoned pro, this Columbia bowling ball is sure to enhance your game and help you achieve higher scores on the bowling alley.