Product Description The new Storm Mix balls, now available in many different colors, expand the Ice line with a new look and feel. The Mix, like the Polar Ice, features a durable U1S first generation urethane coverstock.The Storm Mixs traditional 3-piece core enhances predictability while the urethane coverstock ensures durability that other materials just cant offer. And they are available in lighter weights! In addition to the standard 10-16 pound options, Storm is pleased to offer both 6 and 8 pound options as well.Color: Black/Purple/PinkCoverstock: U1S Pearl UrethaneWeight Block: Traditional 3-piece CoreFactory Finish: 3500-grit PolishFlare Potential: 1-2 (Low)Radius of Gyration (RG): 2.69Differential (Diff): 0.006WeightRGDiff.162.680.006152.690.006142.690.006132.710.005122.720.005