Particularly suitable for sporting activities at sea and mountain : mountaineering paragliding trekking canyoning potholing sailing nautical activities. Sandvik 12C27 modified 85cm stainless steel blade 25 mm thickness for a higher resistance with a serrated area of 35cm to cut lasting and effortless natural and synthetic ropes shackle key (4-10 mm). Virobloc system to lock the blade in opened or closed position. The emblematic and ergonomic Opinel handle 2 high end plastics resistant to extreme temperatures from -40°C to +80°C and to water grip area pealess whistle (works by any time) built into the handle (110 decibels heard from more than 300m). Synthetic grip for hanging on a hook / bag / belt.