Item Type: RC Rear Axle_x000D_Material: ABS, Steel_x000D_Item Type: RC Accessories_x000D_Color: Black_x000D_Product Length: Approx. 137mm / 5. 4in_x000D_Suitable for MN90 MN91 MN99S 1/12 RC car etc. 1Steel Material: Rear axle gears are made of premium steel material for rust resistance, wear resistance and greater strength for better control of your rc vehicle. 2Sturdy Design: Rear axle gears are made of sturdy and precise design, which helps sealed oil leakage, thus making the differential very stable and thus improving the performance of your vehicle. 3Original Fitment: Rear axle of 1/12 RC car fits perfectly with original RC car, no drilling and no destructive installation. It's very convenient. 4Easy To Install: Rear axle is easy to install and remove, and can be directly replaced with original parts or damaged parts for higher strength. 5Applicable Models: Rear axle differential is suitable for MN90 MN91 MN99S 1/12 RC cars, etc. It is an excellent modification part for RC cars.