Don"t get stuck this winter these Standard Snow Donuts provide an easy to use alternative to chains when severe weather strikes. Standard Snow Donuts install easily in minutes are intended for occasional or emergency use with cars, minivans, SUVs and vehicles with four wheel drive. Snow Donuts are certified by TUV, Onorm 5121, B26 and approved by the Colorado Department of Transportation. Very easy to fit especially when compared to standard metallic snow chains, and when taking in to account the extreme conditions of use. No deterioration when used on snow and icy conditions and the maximum speed below 30 mph. Driving on asphalt will shorten Snow Donuts lifespan. No risk of damaging the car (ABS, EPS, ETC), nor the tires. Snow Donuts are light weight, easy-to-store, reusable, and machine washable. They work in a way that they are automatically and perfectly centered on the tire after a very short while of use. It is impossible that they fall off while driving under normal conditions. Includes gloves and storage bag. Sold as a set of two Snow Donuts.