Product Description The new R-16 reactive coverstock describes our latest formulation that provides a perfect balance between power and control. The R-16 formula produces easy length and backend hook motion without extreme sensitivity to the dry and oily parts of the lane. Combined with the traditional light bulb core shape, the Rhino delivers outstanding ball motion and impressive pin action for more strikes and higher scores.Color: Black/Green/Orange Pearl*Please note that colors may slightly vary from image shownCoverstock: R-16 ReactiveWeight Block: Light Bulb Symmetric CoreFactory Finish: 500 Siaair Micro Pad; Royal Compound; Royal Shine PolishFlare Potential: 3-4″ (Medium)Radius of Gyration (RG): 2.524Differential (Diff): 0.030Intermediate Differential (Mass Bias): 0.000Fragrance: N/AWeightRGDiff.Interm. Diff.162.5110.0300.000152.5240.0300.000142.5400.0300.000132.5580.0300.000122.5790.0300.000112.7690.0020.000102.8000.0020.000