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.

Track fans commonly ask when Track will release another ball like the original Stealth. Bowlers loved the all-black, benchmark-style ball that offered extreme versatility. The Stealth Mode is the ball bowlers have been asking for. A touch more performance in the cover than the original, now with the QR-10 cover and the original Stealth core, to not deviate from the line s success, makes this the new standard in benchmark ball reaction from Track. The Stealth Mode is strong enough to be the first ball out of the bag for a wide range of styles and the versatility will make it hard to put this one away.

Performance: Upper Mid
Color: Navy Blue/Raven
Core: Stelth
Coverstock: Solid Reactive
Cover Type: Solid Reactive
Finish: 500, 1500 Siaair Micro Pad
Weights: 12-16LBS
Warranty: 2 Years

RG: 16lbs(2.498) 15lbs(2.482) 14lbs(2.509) 13lbs(2.574) 12lbs(2.597)
Diff: 16lbs(0.048) 15lbs(0.056) 14lbs(0.056) 13lbs(0.040) 12lbs(0.040)