Feature:1. Plastic Material: The gear and transmission cup is made of premium plastic, rust proof and wear proof, stable and reliable, has a long service life.2. Great Performance: Effectively improve the performance of the RC car, reduce the gear position and sweep tooth probability, so that the remote control car driving smoothly.3. Improve Driving Power: Installing this gear and transmission cup gives your RC car a more efficient power transmission system and increased driving power.4. Light Weight: The light accessory will not add burden to the remote control car, can provide a balanced ride, sturdy structure, stable performance, not easy to deformation.5. Perfect Replacement: Reasonable design, easy installation and disassembly, to directly replace the original parts or damaged parts, in order to obtain higher strength.Specification:Item Type: RC Gears and Transmission Cup SetMaterial: PlasticWeight: Approx. 14g/0.5ozProduct Type: RC accessoriesTeeth Number: 40TSuitable: for ZD Racing 1/16 S16 EX16 16426 2011 RC flat car.Package List:2 x 40T Gear2 x Center Shaft Transmission CupNote:The display is not calibrated consistently, and the color of the item shown in the photo may be slightly different from the actual object.