Radian hollow design can effectively remove snow and enhance skid resistance. Special zinc alloy fastener, high hardness, friction resistance,safer driving. TPU material, effectively prevent fracture, slow down anti-skid wear, longer service life. Strong anti-wear engineering belt, high tensile strength, not easy to break. The size of anti-skid chain can be adjusted freely by wear-resistant engineering belt, which is convenient and fast, and can be applied to multiple models.