Perfect for scale crawlers, 1/8 1/10 monster truck, 1/8 1/10 2WD and 4WD buggies, as well as 1/8 scale buggies and trucks. In addition, this servo is a great choice for boats and other application which require high power, high voltage, and waterproof. Waterproof IP67 level up to 1 meter, which allows driving in rain, puddles, snow and mud. Highly reliable and durable patented gear design. Aluminum middle case for fast heat dissipation. High precision digital control circuitry.Features:High performance standard digital servoBuilt-in magnetic sensorWaterproof IP67High precision steel gearHigh efficiency brushless motorHigh strength dual ball bearingsMiddle Alumiunm caseIdeal for 1/10, 1/8 on road, off road, truck/carsSpecs:Operating Voltage: 4.8-8.4 VOperating speed: 0.16 sec/60 @ 6.0VOperating speed: 0.14 sec/60 @ 7.4VOperating speed: 0.13 sec/60 @ 8.4VStall Torque: 26kg - 360 oz-in @ 6.0VStall Torque: 29kg - 400 oz-in @ 7.4VStall Torque: 32kg - 444 oz-in @ 8.4VGear: SteelMotor: CorelessSize: 40*20*37.2mm (1.57 x 0.78 x 1.46 in)Weight: 53gConnector Wire: JR 300 mmSpline: 25T