Storm Concept Bowling Ball Weights:14 lbs. Coverstock: S70 Hybrid

Coverstock: S70 Hybrid

Their sporty style pairs with reliable traction

Material: PVC print and 600D print

The bag features easy-glide skate wheels that are equipped with smooth rolling bearing

Coverstock: Symmetric with Scoop Technology

Storm Concept Bowling Ball Weights:14 lbs. Coverstock: S70 HybridStorm Concept Bowling Ball The SPI LAB Series introduces the Concept, our next innovative release that reverses the narrative on how core cover combinations are developed for challenging patterns. The ARC Cover has the highest coefficient of friction (COF) values and is right at the USBC limit on oil absorption time. With the Concept, the coverstock acts as both the engine and the tires, while the Radius Weight Block behaves as the traction control,