Installoo Stilts 15" to 23" loads up to 265 lb ! (Profi-Line Size M) 265 lb load capacity! Robust and durable aluminum frame, dual spring action allows flexibility, safety leg buckles prevents legs from sliding. Ultralight: Only 5.5 lb per stilt! Rubber soles to prevent slipping and a wing bolt design for adjusting the height without tool. Under constant German technical certification and safety compliance and including instruction manual in English.