1Intelligent Chip: Equipped with high accuracy potentiometer and high resolution digital chip, has stable performance, strong anti interference ability, quick response, with smoother control.2High Accuracy Gear: Adopted hard anodized high accuracy metal gear (stainless steel gear) which is stable during running, providing a satisfying using experience.3Practical Tool: Coreless motor can offer high speed response, powerful efficiency and low power consumption, providing a satisfying using experience.4Waterproof Servo: Fully waterproof servo system can maintain good waterproof density in wet situation, so that you can play with ease even if the weather or condition is bad.5Application Range: Suitable for 1/12, 1/10 and 1/8 scale remote control tracks, buggies, trucks and any waterproof standard servo system for application.1 x Steering Servo5 x Plastic Servo Arm4 x Screw Barrel4 x Rubber Mat1 x Metal Steering Arm7 x Screw