Hammer Black Pearl Urethane Cover - Reactive Pearl Lightweight and flexible woven mesh

Lightweight and flexible woven mesh upper

Slip on pattern for ultimate convenience

Brunswick Classic Heel - (4) Classic Slide

with a boosted differential paired with our dependable Reactor formula will give you the curve you've been craving for

Hammer Black Pearl Urethane Cover - Reactive Pearl Lightweight and flexible woven meshHammer Black Pearl Urethane Mid Performance Bowling Ball Hammer has been the undisputed urethane champion in bowling since the Purple Pearl Urethanes introduction, and we are excited to carry that title through the new phase of harder urethane bowling balls. Since the PBA announced its rule change, only allowing urethane balls to be 78D or harder, our chemists and lab rats have been working hard producing the now famed NU Blue Hammer and the new 78