About this item 12C27 steel blade (surgical stainless steel) 3mm thick with a hardness of 56-57 HRC It is ground (giving the blade its bevel) polished and honed. Made from two 0.8 cm thick pieces of pistachio wood carved by hand to obtain its characteristic curves. 2 stainless steel plates are guillochéd and riveted between the spring and handle to ensure supple closing of the knife and enduring solidity. Forged steel plates. The Bee is arc-welded thus melting both metals into one. The guilloché work is then carved. Closed size: 12 cm Opened size: 23 cm Made 100% in Thiers in France Delivered in a black magnetic box with certificate of origin and lifetime warranty