Material: Nylon + Manganese steelSuitable Temperature: -35℃ ~ 60℃Features:Manganese steel spikes offer a firm traction on ice and snow and reduce the risk of slipping.Easy to put on and take off, adjustable size to fit shoes: 35-42.Comes with a wear-resistant carry bag.Great for ice fishing, hunting, camping, hiking, and other outdoor activities in winter.Package List:1 * Pair of Crampons1 * Carry BagNote:1. Recommended environment temperature: -35℃ ~ 60℃.2. The crampons are not suitable for ice climbing, or use on mountains with sea level above 3,000 meters..Note:The above sizes are all manually measured, there may be some errors for reference only,please refer to the actual product!Due to the light, the color may be slightly different from the real color