... . 3) Certification: ISO2001 AND MODY Certificate 40s cable chains, snow chains,anti skid chains, tire chains KN TYPE 12MM (3.5MM CROSS CHAIN) AND 9MM ... FACTORY STANDARD SNOW CHAIN .1) Snow chains, truck chains... Structure: Roller chains 2) Easy to install 3) Durable 40s cable chains, snow chains,anti skid chains, tire chains