1. Easy installation; 2. installation without cranes; longer life 3. Wear materials; 4. easy to operate chain tensioning system; 5. Good traction and long life. Note: Do not install in the case of a flat tire chains; when installed on the anti-skid chains, driving speed should not exceed 40KM / hour; try to avoid sudden acceleration or deceleration, the total distance traveled must not exceed 50KM, non-overloading vehicles; when the vehicle driving please shed snow chains when the road surface without the use of snow chains.