This bowling ball ships PRE-DRILLED. There are 5 sizes and the sizes that we drill are based on the weight of the ball. X-Small: 6lbs- Ages 8 and under, Small: 8lbs and 9lbs- Ages 8-11 and womens ring size from 8-11, Medium: 10lbs, 11lbs, and 12lbs, Ages 11-15 and Adult Ring size 10 or lower, Large: 13lbs and 14lbs, Mens ring size 10-12 or people with larger hands, X-Large: 15lbs and 16lbs, Mens ring size over 13 or people with extremely large hands. If you would like a different size drilled for the weight you selected, you must contact us via email as soon as your order is placed with your order number. Pre-Drilled bowling balls cannot be returned or exchanged. DV8 is excited to get more Chill this summer! The solid Chill was a go-to ball for bowlers needing a bigger symmetric option, and the Chill Pearl is a great complement to it and the recently released Hater and Trouble Maker Pearl. The Chill Pearl uses the updated Diva 2.0 core with a higher differential and a strong skid-flip HK22 Inciter Max Flip cover to make sure it covers some boards on the backend. Compared to the Trouble Maker Pearl, the Chill Pearl will be cleaner and sharper and will allow bowlers to use bigger angles while hooking the lane on medium conditions. COLOR: Turquoise/Silver CORE: Diva 2.0 COVERSTOCK: HK-22 Inciter Max Flip COVER TYPE: Pearl Reactive FINISH: 500, 1000, 1500 Siaair/ Factory Compound WEIGHTS :16-12 lbs. HOOK: 270 LENGTH: 170 PERFORMANCE: Length with flip LANE CONDITION: Medium oil BALL MAINTENANCE: To reduce oil absorption and remove dirt from the surface of the ball, clean your ball with Power House Ball Cleaner immediately after each session. WARRANTY: Two years from purchase date