Features: Made of strong steel, that will be more durable and cold-resistant. With 10 teeth, it can offer you good traction on ice and snow. Can grasp the ice firmly and make you walk freely on ice or snow and avoid slipping before you fall. Can help you reduce the risk of falls and injures. Can be adjustable, you can adjust according to the size of your shoes or boots. Specifications: Product Name: Crampons Material: Strong Steel Size: Approx. 20.5 - 31cm / 8.1 - 12.2inch (adjustable) Weight: Approx. 635g (1 pair) Package Included: 1 x Pair of Crampons 1 x Hexagonal Wrench 1 x Package Bag Note: 1. Please take the hexagonal wrench along with you in case of need. 2. It is suitable for walking on the snow or ice, please do not use it for climbing ice or the limit glacier. 3. Temperature Range of Crampons: -25℃~ 60℃. 4. Crampons are designed to use on even snow and ice and low altitude glaciers under the altitude of 2000M, do not use it for ice climbing or high altitude above 2000M.5. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.6. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please in kind prevail.7. Please note that the color of the storage bag of this product will be sent randomly, and make sure you will not mind before ordering.8. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.