Columbia 300 Scout/R Bowling Ball- Blue/Green With its innovative 3-piece offset, puck construction and Super-Flex reactive urethane cover, the Scout displays a sharper break point turn and a better backend hook Coverstock: Reactive Weight Block: Round core with pancake weight block and high-density offset internal puck Ball Finish: Polished Hook Potential: 30 (Medium) on a scale of 0-60 Low-High Recommended Lane Conditions: Medium