Back Rack Truck Bed Rack Installation Kits come packaged with a set of horizontal brackets which ensure your Back Rack Cab Guard works to its full potential, providing complete protection for your cab! The brackets bolt on to your vehicle's side bed rails at a 90 degree angle to the Cab Guards. They are made from durable reinforced steel and are available in a black ceramic powder coated finish which will resist corrosion, scratches, chips and discoloration.