We use the Aluminium tubing and Stainless Steel, so they are hardy and rust-resistant. The Bracket is welded in Stainless Steel for maximum wear. These shafts come complete with adjustable brakes. The single tree is punched from heavy steel and zinc plated for rust protection and is  bolted to the shaft usining a replaceable bolt and oil-impregnated washers for a quiet, reliable pull. These shafts are inteded to be used at an upward angle. The brakes are adjustable according to your needs or your dog's preferences. The shaft tips are curved gently outward so you can position them behind the shoulder for a very low vehicle without poking your dog on turns.