Features Hardness 55-57 HRC. European origin. The stainless steel used in OPINEL blades is a grade optimized to guarantee both high corrosion resistance and high mechanical performance. The blade offers excellent sharpness and high resistance to abrasion (wear) which allows it to withstand regular contact with hard materials, such as ceramics, before requiring re-sharpening. Stainless steel has the advantage of requiring no special maintenance under ordinary conditions of use, unlike carbon steel. Nevertheless, it can meet its limits when it is put in prolonged contact with an aggressive environment (acid, salt water, detergent ...). Handle: Fibreglass-reinforced polyamide to whithstand shocks, humidity, and extreme temperatures(-40°C à +80°C). Pealess survival whistle functions in all weathers (110 decibels). Safety ring: Invented by Marcel Opinel in 1955, the Virobloc safety ring is fitted to all folding knives from the N° 06. Cut out of stainless steel, the Virobloc has two sections, one fixed and one sliding. In addition to locking the blade open (safety in use), it is now possible to lock the blade closed (safety in transport). Opinel N°08 Outdoor Stainless Steel Folding Knife