The Motive Forge 13lb Bowling Ball is a high-performance ten-pin bowling ball manufactured by MOTIV. Made of urethane with a reactive resin coverstock, this symmetrical core ball features a differential of .055 and comes drilled for optimal performance on the bowling lanes. It is designed for serious bowlers who are looking for a reliable and durable ball to enhance their game. The manufacturer offers a one-year warranty for added peace of mind. 2nd drill on this ball.