Don"t get stuck this winter these Ultra intensive Snow Donuts are extra durable compared to Heininger Standard version and provide an easy to use alternative to chains when severe weather strikes. Ultra Snow Donuts install easily in minutes and are intended for intensive use in snow and icy conditions. Can be used with cars, minivans, SUVs and vehicles with four wheel drive. Snow Donuts are 100 percent highly resistant polyolefin anti-skid covers, high resistant anti-wear fabric, and Patented woven design high tenacity system provides longer lasting and better grip in deep snow conditions. 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 into 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 lightweight, 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. Includes gloves and storage bag. Sold as a set of two Snow Donuts.