Core: Pitbull Low RG Asymmetric - DynamiCore

but with plenty of friction to combat heavier oil

Weight Block Core: Orbital Core Symmetrical

This core is covered with Activator Composite Technology (ACT) Hybrid and then finished with 500 Siaair and then Crown Factory Compound

and five year limited warranty let you know that this bag will really hold up to some seriously rugged use

Roto Grip Idol Synergy Bowling Ball Select Weight:15 lbs. Core: Pitbull Low RG AsymmetricRoto Grip Idol Synergy The Roto Grip Idol Synergy takes the best of the original Idol and the Idol Pearl and combines them into a highly anticipated upper mid performance bowling ball. The R&D team at Roto Grip worked hard to formulate the purest and most responsive version of the eTrax hybrid coverstock so far. Combined with the popular Ikon symmetrical core this ball is one to check out. Color: Amethyst Pearl Magenta Solid All colors do vary