Heininger Automotive 9104 Size 70 Non-Skid Traction Aid Winter Tire Standard Snow Donut - Set of 2 Easy to install self-centering non-skid fabric tire slip over snow chain alternative The patented woven design gives extra traction on ice and snow Won't damage tires or cause vibrations while driving Reusable and washable Each set includes 2 snow donuts, gloves and storage bag - one set per vehicle required