Roto Grip RST X-2 Bowling Ball Weight:12 lbs. The core is the same

The core is the same but in a D

Coverstock: Super Flex

This symmetric core provides massive hitting power along with a consistent reaction

metal hardware

This ball introduces the asymmetrical Rondure Core which was designed to provide more ball motion overall without the need for the now banned balance hole

Roto Grip RST X-2 Bowling Ball Weight:12 lbs. The core is the sameRoto Grip RST X 2 Bowling Ball Release Date: 8 27 21 Color: Tanzanite Coverstock: eTrax Plus Pearl Reactive Weight Block: Roto Star Tour Core Factory Finish: 1500 grit Polished Flare Potential: High Radius of Gyration (RG): 16lbs 2. 52; 15lbs 2. 53; 14lbs 2. 55 Differential (Diff): 16lbs 0. 049; 15lbs 0. 053; 14lbs 0. 053 Intermediate Differential (Diff): 16lbs 0. 015; 15lbs 0. 016; 14lbs 0. 016 Fragrance: N A Additional product information: Given the