Brand: SUOERGE - Color: Black - Material: PP Yarn + manganese steel - Each crampon with straps and 10 sharp tips - Durable and perfect anti-slide function - Easily fastened to sports shoes/mountaineering shoes of different size - Ideal for glacier travel or snowy approaches - Unique manganese steel material improves the quality and life span when using in complex geography and weather environment - PP yarn strap improves the mechanical behavior elasticity abrasive resistance and corrosion resistance when contacting water acid alkali salt and other chemical substance - Temperature resistance range: -40'C~60'C - A pair will be shipped