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. The world?s most trusted spare ball?Columbia 300 White Dot Black Purple Silver brings timeless style, unmatched durability, and true performance to the lanes. For over four decades, the Columbia 300 White Dot has remained the go-to choice for beginner bowlers and pros alike seeking spare ball precision. With its eye-catching Black, Purple, and Silver color scheme and rugged plastic coverstock, the White Dot combines aesthetics with consistency and control. Featuring a 3-Piece Core and a symmetrical design, this ball offers a polished finish and incredibly low flare potential (0?1 inches)?ideal for straight shots and spare conversions. With a high RG of 2.69, it maintains easy length on dry lanes, making it a dependable choice in any bag. Whether you're just starting out or need a reliable spare ball, the White Dot performs time and time again. Lightweight options as low as 6LB make it a favorite among youth bowlers, while the full range up to 16LB ensures there's a perfect fit for everyone. Specs at a Glance: Coverstock: Plastic Core: 3 Piece Core Core Shape: Symmetrical Core Coverstock Type: Plastic 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, 16LB Color: Black, Purple, Silver Performance Level: Entry Level Novice Bowling Balls Whether you're a new bowler or a league player needing a straight-shooting spare ball, the Columbia 300 White Dot Black Purple Silver is a proven performer that gets the job done.