Swingable fillet knife is a hallmark of EKA knives. Practical, safe and razor-sharp, for use at home in the kitchen, on the fishing trip or in the sailboat. The shape of the knife blade is optimized for filleting. The inversed gut opener lets you open the gut of the fish and perform the zipping process smoothly and safely. The blade is made by the Swedish Sandvik Steel 12C27, hardened to 57-59 HRC. The handle is made of a high quality PROFLEX™ rubber. The FishBlade is delivered with a Hinged black plastic belt sheath.