15lbs 2oz | 3.5-4" I 3.49oz TW. Roto Grip Optimum Idol Pearl Bowling Ball. Roto Grip Ikon Core. Roto Grip MicroTrax Pearl Reactive. ON THE INSIDE… just like the Optimum IDOL you will find the Ikon + A.I. Core Technology.
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15# Roto Grip Optimum Idol Pearl
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Original Roto Grip Idol - User - 15 lbs - No Thumb
