The new 15lb Storm Bionic Bowling Ball is a high-performance ten-pin bowling ball designed for competitive play. Featuring a reactive resin coverstock and a symmetrical core, this ball offers a .050 differential for added performance on the lanes. With a polished finish and a brand known for quality, this ball is sure to meet the needs of any serious bowler. Plus, with free shipping included, it's a great value for those looking to upgrade their game.