Thank you for viewing. These crampons can be easily and securely attached to any type of mountaineering boot, whether it's for summer or winter. The front of the frame is curved upwards, making walking easier. The teeth, screws, and nuts are made of stainless steel, so they will not rust. For women, if you are using them with crampons, the L size should be sufficient. ✅ Brand: MAGIC MOUNTAIN ✅ Model: Trace Line X ✅ Materials: Aluminum frame, stainless steel teeth, stainless steel screw nuts, nylon belt straps, Hypalon rubber belt deck ✅ Size: L Length 45 Width 19 (cm) ✅ Weight: L 480g (per side)