Zwilling J.A. Heckels Four Star Flexible Fillet Knife, 7″ blade. Unbreakable, hygenic, seamless molded polypropylene handle gives a secure grip. Solingen forged, Friodur, ice-hardened blade made from high carbon no-stain steel. Laser controlled sharpness and superior hardness for a sharp, durable edge. Enhanced bolster design make for a stronger, more balanced knife. Engineered with patented SCT process that combines optimum steel for each part of the knife.