TheELITE EZ Hook Reactive Pearl isa great bowling ball for entry level and casual league bowlers looking to throw a curve/hook. The bright fun colors make these balls appealing to bowlers of every skill level. Each ball features the Pearl Reactive coverstock that glides through the front of the lane, reacts down-lane, and creates optimum pin carry. TheEZ core has a higher differential which brings dependability and a little more hook at the backend.