Columbia 300 Rally Bowling Ball Weights:12 lbs Thanks to its breathable shoe

Thanks to its breathable shoe compartment

1500 Siaair / Crown Factory CompoundWeights – 16-12 lbs

The Nightfall Symmetric core has a high RG and a low differential to assist the beginner bowler with hook control and helps the seasoned bowler maintain their reaction shapes on lanes that are drier

The innovative BOA Li2 system at the heart of the shoes will provide you the inch perfect fitting

Coverstock: HK22 - Cohesion Hybrid

Columbia 300 Rally Bowling Ball Weights:12 lbs Thanks to its breathable shoeThe new Columbia 300 Rally is a powerful new bowling ball made to provide high performance. It's new and perfect variant to the popular Speed ball series. The Rally used the Shifter core which is one of Columbia 300s best asymmetric ball design. This ball has a 2000 grit surface finish and combined in the a HK22 coverstock to take your game to the next level. It also includes Cohesion and Formula 1 additives for extra strength and control. The Rally