?Super Durable Material-Silica Gel & Manganese Steel Teeth? Compared to other cheap snow ice shoe cleats, we choose duty silica gel with excellent elastic & special wear resistant 65 manganese steel instead of normal TPE rubber and stainless steel to ensure the maximum durability. ?Bring Enough Safety and Reduce Injury? The sharp spikes can dig into varieties terrain, reducing the risk of injury from slips and falls when walking. Strategic placement of ice spikes ensures equal distribution of weight for long-lasting comfort. ?Convenient to Use? Very easy to take on and off, easy to adjust the degree of tightness with elastic silica gel. Size information please kindly refer to size chart included in product images. ?Multiple Uses? Not only suitable for outdoor ice and snow, but also for the city to use during the snowy weather, particularly suitable for the elder and kids. ?Flexible and Portable? Great for various kinds of running shoes, hiking shoes, hiking boots, etc. Portable and light weight, also can be roll up in a heavy duty handbag, which perfect for daily carry and storage after use.