Pro Mark 2B Rebound Long, Drumsticks, Select balance series, Longer version for more reach, Lacquered hickory wood, Acorn-shaped wooden tip, Diameter: 15.9 mm, Length: 41.9 cm, Rebound Balance Sticks have a shoulder length of 7.6 cm (3""), which means that the centre of gravity is closer to the rear end of the stick, which produces more rebound