The Hammer 4D Solid Reactive Blue with Sparke 14.5 lb Bowling Ball is a high-quality ten-pin bowling ball designed for mid-performance bowling. It features a symmetrical core, making it suitable for players who prefer a more controlled and predictable ball motion. The ball is drilled and comes in a vibrant purple color with sparkles, adding a touch of style to your bowling game. With its weight of 14.5 lbs, this bowling ball is ideal for serious players looking for a reliable and versatile option for their game.