Super elasticity: The crampon silicone material has strong toughness and will not break after repeated stretching. Jagged and firm: the use of wear-resistant metal can adapt to various terrains. Suitable for rock clim, fishing and other outdoor activities. Easy to use: Both adults and children can use it easily. Widely used in: snow, mud, roads, mountain roads, etc. Material: Metal + Silicone Teeth: 10 Suitable size: L: suitable for 39-45 shoes Size: 28.5x11.5cm Only the main product non-slip studs are sold, other products are not sold, and shoes are not sold. notes: 1. Due to the differences between different monitors, the picture may not reflect the actual color of the item. 2. Due to different personal measurement techniques, there may be a physical error of 1-3 cm. 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.