Adjustable crampons, likely made by Simond, ideal for ice climbing. The adjustment range is approximately for shoe sizes 24cm to 27cm. I used them with 25cm shoes, and the straps have been replaced. I mainly used them on ice walls. They are an older type of crampon. Please refer to the photos for condition. - Color: Black, Pink - Material: Metal, Plastic - Application: Mountaineering, Ice Climbing - Size: Shoe sizes 24cm to 27cm - Weight: 450g, approximately 900g per pair - Storage size: 25cm x 11cm x 9cm Thank you for looking.