Adjustable length nylon tie is suitable for all kinds of shoes. High-strength manganese steel nails, strong, tough and corrosion resistant. 14 nails, 1.5 inches long, can dig a variety of terrain, firm and safe. TPU belts are very flexible and will not break. Excellent crampons for ice climbing, ski mountaineering, glacier hiking, etc. specification: Material: Manganese Steel TPU Suitable for shoes: size 36-46 Nail length: 4cm / 1.5in Packing list: 1 * Double crampons Only the main product non-slip shoe spikes are sold, and no other products are sold. notes: Due to the difference in lighting and screen settings, the color of this item may be slightly different from the picture. Due to different manual measurement methods, please allow slight size differences. Package include: 1 pair of crampons Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering.