[High-grade thick manganese steel]: Car anti-slip chains are strong and wear-resistant, strong grip, strong de-icing and anti-slip ability, and strong anti-slip ability. The crossover design Scientific mesh can offer a smoother ride and excellent non-slip performance. [Upgrade auto tensioner, easy to install]: No tools are required to install car snow chains, remove tires and move vehicles. You can complete the installation of snow chains independently. For detailed installation steps, please refer to product details and installation instructions. [High quality material] ① Both ends of the snow chain are covered with high quality thick TPU tendon protection material to prevent tire and wheel wear, low temperature resistance and a good fit with the wheel. The tightening belt adopts technical grade tightening belt, which is sturdy and durable, resistant to tension and abrasion. [Is the tire right for you? ]: ①Check a string describing the tire size on the tire. The three digits on the left are the tire width. For more details, please see product details. This product is only suitable for Tire widths 165-205mm and fits most cars. When using this product, emergency braking is prohibited and the vehicle speed must not exceed 50 km / h. [Easy to install]: The winter tire chain has a simple tension adjustment belt, which can be easily put on; you can easily install the chain independently without moving the vehicle or dismantling the tire, which is very safe and convenient.