JX-1109MG Digital Servo Metal Gear . Dimension: 23.2x12x25.5mm Water Proof Enchanced Responce Speed: 0.12s / 60deg (4.8V), 0.1s / 60deg (6V) Torque: 2.2kg.cm (4.8V), 2.5kg.cm (6V) Cable Length 18cm Weight 10g