Storm Concept Bowling Ball Brand_Roto Grip KR Strikeforce Marvel Avengers Logo

KR Strikeforce Marvel Avengers Logo Bowling Ball Cleaning Shammy

and molded wheels that can stand up to the pressure

Versatile Bowling Ball

Ball Featuring: Skull Iron

Top shoe compartment holds up to size 15 shoes

Storm Concept Bowling Ball Brand_Roto Grip KR Strikeforce Marvel Avengers LogoStorm 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,