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. Brunswick Energize Bowling Ball ? Versatile Asymmetric Power With Hybrid Precision The Brunswick Energize Bowling Ball is built for bowlers who demand a strong, versatile reaction across multiple lane conditions. Engineered with the trusted Vaporize asymmetric core and paired with the explosive HK22C ? EVO Hybrid Reactive coverstock, the Energize delivers a powerful yet controlled motion that adapts smoothly through lane transition. This ball stands out as a benchmark asymmetric option?ideal when you need a reliable read without sacrificing hitting power. Its hybrid shell provides length with a strong mid-lane presence, while the asymmetric core creates dynamic continuation that helps open your angles as the lanes evolve. Perfect for medium to heavy oil, the Energize gives you consistency, traction, and striking power in a single high-performance package. Key Features Vaporize Asymmetric Core for strong, dynamic motion HK22C ? EVO Hybrid Reactive coverstock enhances traction and continuation Benchmark asymmetric shape ideal for lane transition Versatile reaction suitable for medium?heavy oil Reliable hook with smooth, predictable control Specifications Brand: Brunswick Coverstock Type: Hybrid Reactive Coverstock Name: Brunswick Evo Hybrid Reactive Core Shape: Asymmetrical Core Name: Brunswick Zone Asymmetric Core Radius of Gyration (RG, 15LB): 2.47 Differential (Diff, 15LB): 0.048 Mass Bias Strength: 0.017 Flare Potential: 4?5 Inches Surface Finish: 1500 Grit Polish Lane Conditions: Medium ? Heavy Oil Ball Weights: 12LB, 13LB, 14LB, 15LB, 16LB Color: Black, Blue, Red Performance Level: High Performance Bowling Balls Scent: None