Nano-Thane 2.0 Pearl Coverstock Infinity Asymmetric Core 16 lb 15 lb 14 lb 13 lb 12 lb RG 2.464 Diff 0.05 Length 15% Flare 78% Open in Layout Lab Factory Finish: 800 Diamond Compound II Polish Similar Bowling Balls Compare at weight 12 lb 13 lb 14 lb 15 lb 16 lb Compare No bowling balls found.