The 900Global Volt upper-mid performance bowling ball uses the S72R Pearl coverstock which is the S72 Pearl coverstock with a catalyst added. This coverstock was designed to balance the ball's traction in oil and increase its performance at the backend. The Volt uses the Charged Symmetric Core which has a flip block on the bottom that will increase the change of direction at the breakpoint.
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Color: Sapphire Pearl
All colors do vary somewhat from the picture shown
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Coverstock: S72R Pearl
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Core: Charged Symmetric (14#-16#)
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Finish: 1500 Grit Polished
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Length: Long
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Recommended Lane Condition: Medium Oil
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RG: 2.56 (for 15# ball)
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Differential: 0.047 (for 15# ball)
