Ontario Knife ON6277-BRK M7-B Combat Knife Blade Material: 1080 Carbon Steel Blade Length: 6.7-Inches (17.1 cm) Hardness: 47-53 HRC Sheath Material: Molded Plastic Sheath Type: Pistol Belt Clip 6.6 inch plain edge blade Knife Closed Length: 4.17-Inch Knife Open Length: 12-Inch Weighs 10.7 ounces