BOWLING BALL CORE SHAPE: Symmetrical Core

Hook Potential: Aggressive overall hook

The Velcro closure makes them ideal for quick on-and-off wear

In Box: Shoe Carry Bag

Track Theorem Delta Bowling Ball Weights:13 lbs. BOWLING BALL CORE SHAPE: SymmetricalTrack Theorem Delta Bowling Ball The Track Theorem Delta builds on the legacy of one of Tracks most trusted performers by enhancing the benchmark motion that made the original so successful. It delivers the same strong midlane read and smooth, sweeping shape while adding a sharper response to friction for increased backend motion and continuation. Compared to the original Theorem, the Delta is more responsive downlane without sacrificing