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. Columbia 300 White Dot Blue Black Silver ? The most trusted spare ball in bowling, now with a cool, bold color twist. The Columbia 300 White Dot in Blue, Black, and Silver is perfect for beginners, youth bowlers, and seasoned players seeking a reliable spare ball. Known as the most popular polyester bowling ball in history, the White Dot series offers unmatched durability, straight-line predictability, and visual appeal that stands the test of time. This version features the dependable 3 Piece Core in a symmetrical shape, wrapped in a polished plastic coverstock that excels on dry lane conditions. With a high RG of 2.69, low differential of 0.020, and 0?1 inches of flare potential, this ball stays straight and controlled?ideal for spare shooting or beginner learning curves. From 6LB to 16LB, there's a weight for every bowler, making it an easy choice for youth, beginners, or anyone looking for consistency on the lanes. Specs at a Glance: Coverstock: Plastic Core: 3 Piece Core Core Shape: Symmetrical Core Finish: Polished RG (15lb): 2.69 Diff (15lb): 0.020 Flare Potential: 0?1 Inches Mass Bias Strength: N/A Best For: Dry Lane Conditions Weights: 6LB, 8LB, 9LB, 10LB, 11LB, 12LB, 13LB, 14LB, 15LB Color: Blue, Black, Silver Performance Level: Entry Level Novice Bowling Balls Add reliability and a splash of style to your game with the Columbia 300 White Dot Blue Black Silver Bowling Ball?your go-to spare ball for straight shots and consistent performance.