Tri Strut TR3 Composite Barrel ? Tri Strut TR3 Composite provides strength, stability and consistent performance through triangular formations at the molecular level. TR3 creates a very strong and responsive barrel without any unnecessary weight. * Stacked Barrel Construction ? Two independent walls create a dynamic springboard hitting surface giving you sweet spot with ball-popping trampoline effect. * Clutch 2 Endcap ? The dual density cap is designed to maintain the stiffness of the barrel while dampening impact vibration to give you amazing feel, hit after hit. * The CF5 -11 is for high school and travel players. * Tri Strut TR3 Handle? It?s the tightest/strongest composite DeMarini have developed. Gaining strength through triangular formations at the molecular level it efficiently transitions power from your hands to the barrel giving you balance and consistency.