25g Digital Servo Metal Gear . Dimension: 33.5x15x30mm Water Proof Enchanced Responce Speed: 0.12s / 60deg (4.8V), 0.10s / 60deg (6V) Torque: 3.35kg.cm (4.8V), 4.52kg.cm (6V) Cable Length 18cm Weight 25.65g