Traxxas 4933X Revo Aluminum Hard Anodized Pivot Balls (4) NIBTraxxas 4933X Revo Aluminum Hard Anodized Pivot Balls (4) NIB These trick, hard anodized 7075 T6 aluminum pivot balls are considerably lighter than the stock steel pivot balls. The hard anodized pivot balls feature a special PTFE coating that reduces friction to make the suspension arms pivot as smooth as possible. The pivot balls are sold in 4 packs that include 4 molded bushing caps (not shown). Each package of 4 pivot balls will reduce the vehicles