Free-size crampons, perfect for snow walking and mountaineering. Size L: Approximately 24cm to 28cm I have two of these. Size M: Free size, so 23cm to 27cm. Size S: Also, 17cm to 23cm. I have two of these. I used them at the Sapporo Snow Festival. They were very useful. Here is a set of three different sizes: - Type: Crampons - Material: Rubber - Size: Free Size - Usage: Snow walking/Mountaineering Thank you for looking.