This ball ships professionally PRE-DRILLED for your convenience. We?ve simplified the process so you can hit the lanes faster. Based on the ball weight you choose, we?ll drill it to a standard hand size that fits most bowlers in that weight range: X-Small (6lbs): Ages 8 under Small (8?9lbs): Ages 8?11, women?s ring size 8?11 Medium (10?12lbs): Ages 11?15, adult ring size 10 or under Large (13?14lbs): Men?s ring size 10?12 or larger hands X-Large (15?16lbs): Men?s ring size 13+ or extra-large hands Want a different drilling size than standard? Email us immediately after checkout with your order number and your preferred size. Radical Torpedo Pearl Blue Bowling Ball ? Blue Take your strike power to the next level with the Radical Torpedo ? aggressive backend motion, premium cover, and dynamic core built for Top Shelf performance. Engineered for high performance, the Radical Torpedo combines the explosive HK-22 Cohesion+ Pearl (HK22C+ Pearl) coverstock with the powerful Torpedo Asymmetric Core to create a bold, angular reaction downlane. Designed for bowlers who want an aggressive move through the pins, this ball offers strength, versatility, and unmatched continuation through medium to heavy oil patterns. Whether you're competing at a high level or just ready to make a serious leap, the Torpedo provides customizable drilling options that let you fine-tune your layout for either max hook or smoother control. It?s part of Radical?s Top Shelf line?engineered for bowlers chasing elite-level performance. With a 1500 Grit Polish finish, it delivers excellent traction and a clean glide through the heads, followed by a powerful backend finish. And the bold blue color scheme makes it look as striking as it performs. Specs at a Glance: Coverstock: Radical HK22C+ Pearl Reactive Core: Radical Torpedo Asymmetric Core RG (15lb): 2.48 Diff (15lb): 0.054 Intermediate Diff: 0.017 Surface Finish: 1500 Grit Polish Flare Potential: 4?5 Inches Ball Lane Conditions: Medium ? Heavy Oil Performance Level: High Performance / Radical Top Shelf Weight Options: 12lb ? 16lb Color: Blue Scent: None Mass Bias Strength: 0.017 If you?re looking for a pro-level ball with aggressive motion and high-tech design, the Radical Torpedo is your next go-to weapon on the lanes.