• (Reason #1 why this is a safe and reliable product) These Biathlon chains have cleared the standard performance tests established by the Japan Automobile Traffic Safety Accessories Association (JASAA), making them a reliable JASAA certified product.These rigorous standards include being able to withstand up to 372.8 miles (600 km) of use. • (Reason #2 why you can rest assured when using this product) This product utilizes a fast, fuss-free, and easy quick lock mechanism for mounting the chains to your tires, meaning you will not need to jack up your car or move it.The 3 locks disperse the clamping pressure for smooth installation. • (Reason #3 why you can rest assured when using this product) This product’s macaroni-shaped spikes are made with an ultra hard material that drastically improves traction on icy roads.They’re even great on icy city streets after it snows.Made with high performance polyurethane elastomer that is durable and long-lasting.Our company’s durability standards are 1.5 times greater than that of JASAA. • (Reason #4 why you can rest assured when using this product) Satisfaction: A genuine product and best seller in Japan (according to our research); (Reason #5 why you can rest assured when using this product) Made in Japan; (Reason #6 why you can rest assured when using this product) Designed and produced in Japan.- • Compatible vehicle models: Crosstrek, 40 series Alphard, Harrier, Granace, Delica D:5, RAV4, Eclipse Cross, CX-5 *Please make sure to search for the appropriate part number from the vehicle model compatibility chart before purchasing.