The black finish on the 8.5 cm long Sandvik 12C27M stainless steel blade and Virobloc ring is obtained through a specific treatment (electrolytic bath). This treatment improves the resistance to corrosion (in accordance with food contact). The handle is made from high-quality oak wood. (NOTE: This treatment is scratch-sensitive, be careful not to use abrasive products or abrasive sponges when cleaning.) Features . 8.5 cm Sandvik 12C27M stainless steel with black finish . Oakwood handle with aluminium inlay . Virobloc safety ring with black finish