Constructed of TIG welded chromoly steel tube and laser cut steel brackets, these will replace your factory rear control arms in order to install air bags with zero rubbing issues. Comes with IDF Lower Control Arms and upper bag brackets that mount to the frame with included hardware. Complete bolt on installation. No Cutting Needed. Goes as low/ lower than other kits on the market which require cutting of the frame hump. Designed for use with Double Convoluted Bags, e.g. Slam Specialties SS series. Control Arms Powder-coated White, brackets Powder-coated black.