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. Crawl Into the Web... It's been a long time coming but it's finally here. The perfect complement to two of the biggest selling bowling balls in the Hammer line, we present the Black Widow 2.0 Hybrid! This ball features the all-new HK22 base coverstock with the Aggression Hybrid additive package. Cleaner through the fronts and more aggressive downlane, compared to the Black Widow Ghost. Preying on the Pins! The Black Widow 2.0 Hybrid features the world-famous Gas Mask core. This core is known for making bowling balls "do the right thing on the lane". With the conbination of the new cover and the Gas Mask core, this ball is destined to be a wrecking ball on the lanes and it will leave a trail of pins in it's wake. BATTLE TESTED: The Black Widow 2.0 Hybrid has gone through more testing than any Black Widow in recent history to ensure that it fits the line perfectly. CRAWLING INTO YOUR ARSENAL: The Black Widow 2.0 Hybrid uses the all-new HK22 base resin with the Aggression Hybrid additive package. This will provide more length and a sharper backend reaction in comparison to the Black Widow Ghost. WITHSTANDS THE TEST OF TIME: The Black Widow 2.0 Hybrid uses the famous Gas Mask core. This will give you vibes of that Black Widow reaction and carry you've come to know and love. SHINY STRENGTH: The Black Widow 2.0 Hybrid features our new HK22 base material. This cover provides rich, impressive colors and super responsive backend reaction. A new reaction shape for our pearl, hybrid and shiny solid bowling balls! BUY WITH CONFIDENCE: The Black Widow 2.0 Hybrid carries a 2-year limited manufacturer's warranty. The Numbers RG: 2.500 (15 lb.) DIFF: 0.058 (15 lb.) FINISH: 500, 1000, 1500 Siaair / Crown Factory Compound AVAILABLE WEIGHTS: 12-16 lbs.