Features 1、[Use Purpose] Used to change the torque, speed and angle of RC toys, robots, robotic arms and other remote control toys, with various uses. 2、[RC Servo] Using extremely strong stainless steel gears and full body metal casing, 40kg high torque, to ensure long service life and durability. 3、[High Resolution Digital Chip] Metal gear servo has high resolution digital chip, quick response speed, and more delicate and smoothing control. 4、[Applicable Model] Specially designed for RC car, 40KG metal gear steering gear is suitable for 1:8/1:10 RC car (such As for SCX10, Etc.) robots, etc. 5、[High Accuracy Potentiometer] Metal gear servo uses high accuracy potentiometer with stable performance and strong anti interference ability. Item Type: 40KG Metal Gear Steering Gear Color: Black Dead Zone: 3μs Number of Teeth: 25T Rotation Angle: 180° Shell Material: Aluminum Alloy Weight: Approx.180g/6.3oz Size: Approx. 40x20x41mm/1.57x0.8x1.61in Working Frequency: 1520μs/330hz Speed (6V): 0.2 Seconds/60° Speed (7.4V): 0.18 Seconds/60° Locked Rotor Torque (6V): 36kg/cm Locked Rotor Torque (7.4V): 40kg/cm Application: 1:8/1:10 RC Car (such As for SCX10, Etc.) Robots, Etc. Package List 2 x Servo 10 x Plastic Steering Gear Arm 8 x Screw Barrel 8 x Rubber Pad 2 x Metal Steering Gear Arm 14 x Screw