Solutions for single axle, half and full tandem axle applications are included in the Total Installation Kits for fenders from BettsHD. Each kit, with a single part number, includes two fenders with vibration absorbing rubber insulators, along with all brackets and hardware necessary to complete installation. All BettsHD fenders include mating material hardware designed to reduce corrosion, the company says. The kits are available in stainless steel, galvanized, aluminum and poly.