900Global Volatility Torque The 900Global Volatility Torque high performance bowling ball introduces the S84 Response Pearl coverstock which offers unprecedented oil absorption. This coverstock offers a max backend reaction on heavy oil conditions. The Volatility Torque contains the Volatility Asymmetric Core which is designed with a density and shape that gives bowlers a great RG and Differential while preventing the bowling ball from hooking too early. Color: Emerald/Steel/VioletAll colors do vary somewhat from the picture shown Coverstock: S84 Response Pearl Core: Volatility Asymmetric Finish: 1500 Polished Hook Potential: High Length: Long Reaction: Skid/Flip RG: 2.49 (for 15# ball) Differential: 0.050 (for 15# ball) Recommended Lane Condition: Medium Heavy to Heavy Oil