Track Proof Pearl You need more proof? Track has got more Proof in the form of a Pearl high performance bowling ball. This ball boasts to possibly have the strongest core in this ball category to date which is paired with the Prime Response pearl coverstock and is best used on medium to heavy oil conditions. This bowling ball is strong at the midlane and has a continuous motion and never wants to quit, even with its combination of a strong core, cover, and finish. Color: Black/Smoke PearlAll colors do vary somewhat from the picture shown Coverstock: Prime Response Pearl Core: Proof Finish: 500, 1000 Siaair/Crown Factory Compound RG: 2.519 (15# ball) Differential: 0.052 (15# ball) Recommended Lane Condition: Medium to Heavy oil Reaction: Strong midlane and continuation Hook Potential: High Length: Long Manufacturer's Warranty: 2 Years from Purchase Date
