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 Twist Black Gold Silver Bowling Ball Step up from plastic and get hooked on performance with the Brunswick Twist Black Gold Silver bowling ball. Built to bridge the gap between the T Zone and Rhino lines, the Twist series brings impressive reactivity at a beginner-friendly price point. Its vibrant black, gold, and silver color palette adds standout style to your game. Engineered with the trusted Brunswick R-16 Pearl Reactive coverstock and the newly designed Twist Low Diff Symmetrical Core, this ball delivers easy length and a smooth, controllable backend, making it ideal for dry to medium oil lane conditions. With an RG of 2.59 and a differential of 0.018 (15LB), the Twist produces modest flare?perfect for learning the basics of hooking while staying in control. Whether you?re just starting out or moving up from a plastic ball, the Twist offers performance, reliability, and bold aesthetics?all without breaking the bank. Technical Specifications: Brand: Brunswick Coverstock Type: Pearl Reactive Coverstock Name: Brunswick R-16 Pearl Reactive Core Shape: Symmetrical Core Core Name: Brunswick Twist Low Diff Core RG (15LB): 2.59 Differential (15LB): 0.018 Mass Bias Strength: N/A Flare Potential: 2 ? 3 Inches Surface Finish: 500 Grit Polish Lane Conditions: Dry ? Medium Oil Performance Level: Entry Level / Affordable Performance Color: Black, Gold, Silver Available Weights: 8LB, 9LB, 10LB, 11LB, 12LB, 13LB, 14LB, 15LB, 16LB Scent: None This is the go-to ball for bowlers of all skill levels seeking an affordable, stylish way to get serious about improving their game.