All Metal gear Servo SM-S4315M 60g Waterproof 2X Ball bearing 17KG SpringRC 17KG 60g SM-S4315M Metal Gear Servo SpringRC Waterproof Features: High torque analog servo,double ball bearing. Recommend:Large scale car model,boats,robot. Weight:56g(less connector) Dimension:41.3x20.3x38.7mm Supply voltage:4.5~6.0V Stall Torque:15kg.cm at 6.0v Operating Speed:0.16sec/60¡ã at 6.0v (no load running) Storage Temperature £º-20¡æ~55¡æ Dead band width:¡Ü4u Package list: 1 x SpringRC SM-S4315M Servo 1 x Servo Accessory