Fillet knife and sharpener Blade material: 420 stainless steel Handle material: polypropylene with TPR coating Sheath material: thermoplastic Hook sharpener: diamond Blade: 15.2 cm (6 in.) Handle: 12.3 cm (4.8 in.) Knife sharpener integrated into the sheath Product weight (with sheath): 100 g (3.5 oz.)