These chains are designed for highway use. Made from Heavy Duty 5.5mm twisted square link alloy chain. Fits Tire Sizes: 265/60-18, 255/60-19, 245/70-17.5, 255/75-15, 245/85-15, 285/60-16, 265/70-16, 255/75-16, 265/75-16, 245/85-16, 255/85-16, 265/85-16, 285/60-17, 255/70-17, 265/70-17, 275/70-17, 245/75-17, 255/75-17, 235/75-17.5, 285/50-18, 275/60-18, 285/60-18, 275/65-18, 285/65-18, 255/70-18, 265/70-18, 235/80-18, 245/70-19.5, 295/40-20, 275/45-20, 295/45-20, 275/50-20, 255/60-20, 285/35-22, 285/50-20, 295/30-22, 275/65-16, 275/60-17, 265/75-17, 245/85-17, 275/55-19, 275/65-17, 265/45-22, 245/70-18, 245/75-18, 285/55-19, 255/65-19, 255/55-20, 245/60-20, 225/75-20, 285/40-22