Security Chain Company Z-563 Z-Chain Extreme Performance Cable Tire Traction Chain - Set of 2 Manganese alloy cross members provide superior, all-around traction performance and greater durability compared to conventional traction products Fast, secure installation and removal, with no need to move the vehicle Better compatibility with anti-lock brakes, traction control, all-wheel drive (AWD) and other electronically monitored control systems MeetsS.A.E. Class Sclearance requirements or vehicles with limited clearance Low potential for damage to vehicle body and mechanical components, even when abused Chain tensioners should not be used