The GI-20 Pearl coverstock used in this ball stands for Game Improvement 2020

5" Smooth KRuze urethane wheels

continuous motion on the backend

or casual bowlers

most recently found on the successful Power Torq – providing confidence and extreme performance on medium to heavy oil patterns

Track Stealth Mode Hybrid Bowling Ball Weights:12 lbs. The GI-20 Pearl coverstock usedTrack Stealth Mode Hybrid Bowling Ball Track has improved on one of its most popular lines with Stealth Mode Hybrid, which is a cleaner, sharper version of the standard motion that Track bowlers rely on. We took the original Stealth core and the HK22C Super Response Hybrid cover and put them together to make a shape that keeps the Stealth Mode's signature control and versatility. The end result is "powerful reliability" a cleaner shot through the