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 TZone Night Sky Bowling Ball Looking for your first bowling ball or a dependable spare? The Brunswick TZone Night Sky makes it easy to hit your mark ? and look good doing it. Designed for pinpoint accuracy, this ball is perfect for beginners and seasoned bowlers alike who want a no-fuss spare ball that delivers consistency. The Night Sky?s polished plastic coverstock glides effortlessly on dry lanes, while the symmetrical 3 Piece Core keeps the reaction smooth and predictable. With its sleek black color and high-gloss 3500 Grit Polish finish, this ball doesn't just perform ? it impresses. Available in a wide range of weights from 6LB to 15LB, it?s a great option for youth bowlers, casual players, or anyone leveling up from house balls. Specs at a Glance: Brand: Brunswick Coverstock: Plastic Cover Name: Plastic Core: 3 Piece Core Core Shape: Symmetrical Core Surface Finish: 3500 Grit Polish Flare Potential: 0 ? 1 Inches Mass Bias Strength: N/A Lane Conditions: Dry Performance Level: Brunswick Plastic Performance Bowling Balls, Entry Level Novice Bowling Balls Scent: None Color: Black Weights: 6LB, 8LB, 9LB, 10LB, 11LB, 12LB, 13LB, 14LB, 15LB Whether you're rolling your first game or picking up tough spares in league night, the TZone Night Sky is your go-to for accuracy and style without the guesswork. Add it to your arsenal today and bowl with confidence.