MB Arts W211/219 adjustable rear camber arms are made from 7075 billet aluminum. They have a 5/8" high strength steel adjuster that has been Electroless nickel plated for corrosion resistance. The bushings are custom machined poly/graphite units used for their durability and are squeak free. The arms have a solid 6 degrees of camber adjustment which is enough to handle virtually any camber issues you may have. The camber arms are finished in anodized black for corrosion resistance. (Patent pending)