Through improvement, structure optimization, I believe it will have excellent performance! Improve the performance of the racing car. Item specifics New: A brand-new, unused, unopened, undamaged item (including handmade items); Model:UDR; Type:front CVD driveshaft; Color:Black; Country/Region of Manufacture:China; Compatible Vehicle Type:Crawler, Scale Compatible Fuel Type:Electric Compatible Scale:1:7 Original stock part no.8550+8553 ----Dear customer, we have a professional team. For more abundant products, please search: AILICH