Amphibian Diving Boot Knife Model 1006K Steel.....420J2 Stainless-Steel Handle..420J2 Stainless-Steel Skeleton ............with Co-Polymer Insert Blade....3 3/4 in. (9.5 cm) Overall..7 3/4 in. (19.7 cm) Weight...3.2 oz Includes Kydex Multi-Function Sheath with leg straps.