M80 Solid Reactive Coverstock Mallet Asymmetric Core 16 lb 15 lb 14 lb 13 lb 12 lb RG 2.526 Diff 0.048 Length 54% Flare 73% Open in Layout Lab Factory Finish: 2000 Wet Sand Similar Bowling Balls Compare at weight 12 lb 13 lb 14 lb 15 lb 16 lb Compare No bowling balls found.