This is the Brunswick éthos Penetrate. Used for about 10 games. Drilled with 2 holes (fingers only). Currently drilled for right-handed two-handed or thumb-less styles. It's a rare type of ball that goes long and has a gentle arc, making it easy to use even in the later stages of a game without overreacting. Here are the specifications: Coverstock: HK22 + Evolution Reactive Cover Type: Pearl Reactive Core: éthos + D.O.T + DynamiCore (Symmetrical Core) Surface Finish: #500→#1000→#1500→CROWN COMPOUND RG Max: 2.534 RG Min: 2.481 RG Diff: 0.053