HomeSolidRoto GripPerfect Gem Roto Grip - Perfect Gem STATUS: Announced RELEASE: Worldwide BEST FOR: Medium to heavy oil Release:Oktober 2, 2026 Factory Finish:2000 Abralon BOWLING BALL INFOS New Release: Details will follow! COVERSTOCK Coverstock: E-R1 Solid Covertype: Solid Finish: 2000 Abralon CORE Core: Gem + A.I. Core Type: Asymmetric 16 Lbs:RG 2.490 / Diff 0.055 / MB Diff 0.017 15 Lbs:RG 2.490 / Diff 0.057 / MB Diff 0.017 14 Lbs:RG 2.520 / Diff 0.056 / MB Diff 0.016 Characteristics: Low RG - High Diff Ball InfosRating Manufacturer:Roto Grip Release:Oktober 2, 2026 Status:Announced User Ratings (0)There are no user reviews for this ball yet. Leave a reviewReview criteriaFlexibilityHook PotentialPrice/PerformanceReactiontime VIDEO The Strike Zone App Your complete coaching and equipment management in one place as an app – available for free and always ready.  Comparable Balls Your Arsenal Ball Comparison Popular Bowling Balls: Black Widow Discontinued 5 out of 5 Jackal October 2014 Discontinued 5 out of 5 Jackal LE November 2016 Discontinued 5 out of 5 Venom Shock March 2014 Available 4.5 out of 5 Fight February 2016 Discontinued 4.5 out of 5 Sublime Focus September 2024 Discontinued 4.5 out of 5