Features 1、ALUMINUM ALLOY MATERIAL: The shell is made of premium aluminum alloy material, which is wear resistant, rust proof and durable, so as to better control your RC car. 2、MAIN APPLICATION: Helps to prevent dust and debris from entering the spur and pinion gears, achieving a quiet and efficient power transmission system. 3、PERFORMANCE IMPROVEMENT: With fixing screws, it is powerful, and the gearbox can achieve the best performance, improving the overall performance and durability of the RC car. 4、LOW NOISE OPERATION: The built in steel gear is delicate and smoothly, which solves the noise problem of gear transmission and makes the RC car very quiet. 5、EASY TO INSTALL: Reasonable design, easy to install and disassemble, and can directly replace the original or damaged parts to obtain higher strength. Item Type: Gearbox Housing and Base Set Material: Aluminum Alloy Package List 2 x Gearbox Housing 1 x Gearbox Base 20 x Screw