Product Description Introducing 900 Globals latest spare balladdition: the Onyx polyester bowling ball. Featuring a classic design, this ball showcases both the 900 Global logo and “G” Logo on each half. As it rolls down the lane, the Onyx creates an eye-catching path to the pins. This one is made to stand out!Color: Clear *Please note that colors may slightly vary from image shownCoverstock: Clear PolyesterWeight Block: 3-Piece CoreFactory Finish: 3500 PolishedFlare Potential: LowRadius of Gyration (RG): 2.69Differential (Diff): .006Intermediate Differential (Mass Bias): 0.000WeightRGDiff.Interm. Diff.162.690.0060.000152.690.0060.000142.690.0060.000