Worth 12 NSA Hot Dot ProTac Slowpitch Softballs The Worth Hot Dot softball is designed to give players consistent hit distance at all temperatures. This is especially true in hot weather conditions, when other balls dramatically drop in performance and distance. This ball features C-LOK adhesive and moisture barrier second layer technology that locks on the pro grade cover to the core. Model : NHD12SY - 12 - ProTac Cover - .52 COR - 275 lbs Comp - Black Stitch - C-LOK - Sold and Priced per Dozen