Product description 1.High quality traction: 19 chain-plated prongs made of stainless steel guarantee excellent durability. Offers high comfort with even weight distribution and reliable traction on different terrain with ice and snow. 2.Worked at -60C Abrasion-resistant rubber with good elasticity and toughness, which works well. Cold resistance and elasticity ratio general rubber better. Elastomer band remains flexible up to a temperature of -60 C. 3.Velcro closure design: for better attachment to the shoe, our crampon also features the Velcro fastener, which allows you to easily adjust crampons so that it is better adapted for your shoes. 4.Easy to carry and carry: included, wear resistant Oxford fabric carry case for convenient carrying and easy storage. 5.Suitable for most types of sports shoes: hiking boots and mountain shoes. With the sharp spikes, can be used in terrain, on ice and snow, uphill and mountains, frozen areas are no problem. Available in 2 sizes: Medium (36 to 39) and Large (40 to 46).