Utilizing D'Addario's patented, heat-activated ActiveGrip solution, ProMark's Rebound 5A drumstick model is engineered to get tackier as your hands sweat and body temperature rises. These sticks are created for agility but won't tear your hands up or cause restrictions to range of movement or technique. Diameter : .565" / 14.4mm / Length: 16" / 406.4mm