Features: Material: Made of quality metal, features high strength and durability, not easy to damage. Easy to install: Machined for-precision, easy upgrade, It can provide strong support, and drive more smoothly. DIFFERENTIAL ROTATION: The RC-differential can realize the rotation of the left and right wheels at different speed for perfect control. IMPROVE PERFORMANCE: The RC-differential can improve remote control car performance and add more fun to the remote control. APPLICABLE TO: RC-differential is easy to install and disassemble, especially suitable for 1/14 1/18 remote control car. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement                Description: Number of teeth: 30T Length: 39mm Package List: 1/2pcs Front/Rear Differential Gearing Wheels