This black and purple Brunswick Groove bowling ball looks sharp down the lanes. This performance ball is made with reactive coverstock technology. Compared to plastic, reactive coverstock technology increases traction and hooking action in the oil, and reactive coverstocks can be sanded or shined to create large differences in hook potential. Reactive coverstocks also respond more aggressively to dry lane surfaces than urethane coverstocks, increasing backend hooking action and hitting power. This is recommended as a first high-performance ball.