This SP15 is an exclusive design to OTW BAT CO. If you are looking for the perfect combination of balance and power this is the preferred model for Line Drive Hitters. With a Medium sized Barrel, The SP15 is crafted from the most dense billets available. The pop and drive on this model is unlike no other. This model is used by thousands of players in all levels of play. Our proprietary finishing process guarantees you get the hardest barrel surface on the planet.