ProMark REBOUND 5B HICKORY AGC WD TIPActiveGrip is Promark's patented heat activated grip coating that's engineered to get tackier as a player's hands sweat and their body temperature rises. It applies thin like a traditional lacquer adding no additional diameter or weight to the stick. Unlike most grip alternatives on the market ActiveGrip doesn't tear up players hands or cause restrictions to range of movement or technique.