Bringing extreme performance to your tires . the Peerless Z-579 Z-Chain Tire Traction Chain Set lets your vehicle conquer any condition. The product choice for police . fire . ambulance . and other professional fleets in North America . the Z-Chain's fast installation and aggressive traction performance outclass the competition.Not requiring vehicle movement while attaching the chains . the traction cables conveniently install and remove within minutes. Designed to meet the demanding requirements of emergency services . these durable and rugged chains traverse the winter roads without trouble. Built with greater durability than conventional chains or cables . the traction chains reduce the potential for damage to your vehicle's body and mechanical components. The chains meet S.A.E. Class "S" clearance requirements for vehicles with limited or low clearance. An included Z-Chain bag stores the cables when not in use.Built for many applications . the chains fit a variety of tire sizes. Check with the manufacturer to ensure a proper fit. The system offers better compatibility with anti-lock brakes . traction control . all-wheel drive . and other electronically-monitored control systems. Do not use chain tensioners.A good chain set lets you brave even the toughest terrain. The Peerless Z-579 Z-Chain Tire Traction Chain Set tackle winter roads with ease.