The Deluxe Falcon Fillet with a stainless steel blade has a multi-purpose sheath that protects the blade and user plus allows in-the-field sharpening via its built-in fine grade ceramic-sticks sharpener. This knife is to be used only for filleting fish and is not to be used for any other purposes. Safety Warning: Knife is sharp and potentially dangerous. Always store a knife in a sheath and away from children when not in use. Maintain knife in a sharp and clean condition. Cut away from your body.