Roll big with the Ebonite® Reactive Crush/R Bowling Ball. Featuring a reactive resin cover, this ball delivers a delayed and extreme hook. Its super track veneer produces high arc potential as it glides down the lane. Perfect for bowlers with good control, this Ebonite® ball has a symetric, "pancake" top weigh block and symmetric, full size PowerCore™. The Crush/R's highly polished finish creates a sleek look for serious bowlers.