Each block measures 27.6" (L) x 10.8" (W) ，Can be used as tire chains, snow chains. Provides emergency traction for your tires in snow, ice, mud and sand. Works on all vehicles with summer, winter, or all-season tires. No installation required, making it hassle free, easier and safer to use than tire chains and snow chains. Suitable for use with all vehicle types; from cars to trucks to ATVs. The perfect alternative to potentially harmful tire chains. Textured, rubberized rungs with galvanized steel connecting cables are incredibly durable and can support vehicles weighing up to 7 tons! Made of High Strength Engineering Rubber and Galvanized Steel Core, nearly indestructible and can be used over and over again.