1、RC Servo: RC servo adopts strong stainless steel gear and full body metal housing with 70kg / 154.3lb torsion to ensure long service life, good durability and high accuracy. Suitable for SCX10 1/8, 1/10 RC cars. 2、Built in Brushless Motor: The built in brushless motor has large torsion, and its service life is 10 times that of coreless motor at the same level. 3、IP67 Waterproof Grade: Fully waterproof design, IP67 waterproof grade, steering gear can be fully immersed in water. 4、Wide Application: Used to change torsion, speed and angle of RC toys, robots, robotic arms and other remote controll toys. 5、Simple Operation: Simple to operate, easy to use, easy to install and disassemble. Without any difficult requirements even though you use it for the first time. Item Type: 70KG Digital Servo Weight: Approx.145g / 5.1oz Shell Material: Aluminum AlloyGear Material: Stainless Steel Color: Black Product Size: Approx.40 x 20 x 37mm / 1.6 x 0.8 x 1.5in Teeth: 25T Rotation Angle: 180° Dead Zones: 2μs Operating Frequency: 1500μs/330hz Speed (6V) : 0.12s/60° Speed (7.4V) : 0.1s/60° Locked Rotor Torsion (6V): 65kg/cm Locked Rotor Torsion (7.4V): 70kg/cm Transmission Ratio: 314 Bearing: Double Bearing Motor: Brushless Motor Waterproof Grade: IP67 Applicability: Suitable For SCX10 1/8, 1/10 RC Cars 1 x Steering Gear 2 x Plastic Steering Arm (Random Color) 6 x Screw 4 x Screw Barrel 4 x Rubber Mat 1 x Metal Steering Arm 2 x Gear (1pcs Large and 1pcs Small) 2 x Safety Pin 1 x Manual