9″ Boning/Fillet Knife. Constructed with high quality materials. The Large boning blade is made with high grade German Stainless steel. Blade coated with DuPont Teflon, which adds corrosion resistance and allows the blade to slide effortlessly through the fillets. The handle features an ergonomic comfort design with durable polypropylene with soft, no-slip grip. Also includes a durable, rigid safety sheath with thumb lock and line cutting channel.