ProBowl Undercover: Strikes with precisionOperates under the radar through the heads, strikes with precision and without warning — then it's gone without leaving a trace.Tech Specs:- Coverstock: Ghost Trail Reactive- Finish: 1500 grit / Factory Polish- Color: Red/White/Blue- Core: The Source- Weights: 10-15 LbsPerformance specs:- 15 lbs: RG 2.58, Diff 0.024- 14 lbs: RG 2.64, Diff 0.022- 13 lbs: RG 2.68, Diff 0.019- 12 lbs: RG 2.68, Diff 0.019- 11 lbs: RG 2.75, Diff 0.002- 10 lbs: RG 2.79, Diff 0.002