Product Name : VITAVON CNC Alu 7075 Rear Suspension Upper Link For Traxxas UDR 1/7 Brand : VITAVON Color : Silver Gold Black Blue Red Made of high quality Alu7075 by CNC process. assembled with pivot balls without the o-ring, no need screws, we made the hollow steel ball pivot position in"ARCUATED" shape, same as original design, the ball will not fall off or move loose easily, make the car more stable and smooth during driving. light weight. 2pcs per set Original stock part no. 8542 weight:75g for one pair