I had a very horrible experience with this product. They only lasted 50 miles in Yosemite Park yesterday. They were easy to attach to the tires, but the steel belt buckles scratched my wheels badly. Also, the straps almost cut my air valves. And the worst. descending at just 15 mph, almost praying the belts wouldn't be severed by the calipers while 2 of the 6 chains were already lost on the road. I hope this review will help avoid a terrible and DANGEROUS situation. LEGALLY.