Product DescriptionFor more than a decade Z-Chain has been the winter traction product choice for police, fire, ambulance and other professional fleets throughout North America. Z-Chain?s fast installation, aggressive traction performance and extreme durability simply out-class all other options.Amazon.comThe SCC Super Z6 SZ435 winter traction product offers superior performance for pickups and SUVs with very limited operating clearance around the drive tires. Be ready for winter driving with an innovative solution that is a step beyond traditional tire chains. New Design Based on the "Z" family of products, the Super Z6 is designed for vehicles with restricted clearance around the drive tires. The Super Z6 requires only 6.33 millimeters (.25 inches) of sidewall clearance to operate, less than half the space required by most cable and tire chains. A diagonal crossmember pattern provides better outstanding traction and durability than conventional chain systems. Easy to Install A split outside cable with two fastening positions allows for easy installation without moving the vehicle, so there's no need to stop and retighten. The traction coils are manufactured from alloy steel to increase the lifespan of the product. The Super Z6 is also designed to prevent scratching of alloy or high performance tire rims. Versatility The Super Z6 is available to fit pickups and SUV tire sizes. It offers a unique combination of performance and convenience features for every user, including a "designed-in" rubber tightener, better all-around traction performance than conventional tire chains or cables, and greater durability. Designed for High Performance The Super Z6 has better compatibility with anti-lock brakes, traction control, all-wheel drive, and other electronically monitored control systems so as not to interfere with the normal handling characteristics of your vehicle. The unique design also offers a low potential for damage to vehicle body and mechanical components, even when abused. The Super Z6 SZ435 is designed for tires sizes from approximately 9.50-16.5LT up to 265 millimeters. Check the manufacturer's website for the exact product to fit your tire size. Also check your owner's manual for clearance specifications before installing winter traction products. What's in the Box Chains, plastic gloves, one pair of rubber tensioners, durable, re-usable nylon bag, and clear, illustrated step-by-step installation and removal instructions.