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. Ready to level up from plastic? The Brunswick Twist is your perfect first reactive ball. Designed for bowlers who want to move beyond basic spare balls, the Twist blends the control of the T-Zone with the punch of the Rhino ? giving you smooth length and a clean, readable backend reaction. Powered by Brunswick?s proven R-16 Pearl Reactive coverstock and the Twist Low Diff Core, this ball is tailor-made for dry to medium oil conditions, offering easy skid through the front and a predictable hook that builds confidence. Lightweight options make it ideal for youth or beginners, and the vibrant swirl of blue, pink, and white ensures it stands out on the lanes. Whether you're chasing your first strike or sharpening your control, the Twist makes progression effortless. Specs at a Glance: Coverstock: R-16 Pearl Reactive Core: Twist Low Diff Core RG (15lb): 2.59 Diff (15lb): 0.018 Finish: 500 Grit Polish Flare Potential: 2?3 inches Best For: Dry to medium lanes Weights: 8lb?16lb Performance Level: Entry/Novice The Twist is proof you don?t need to break the bank to bowl like you mean it. Great for kids, teens, or adults making their first move into reactive gear. Add it to your cart, and start striking smarter.