Marine Hero Spring Assist Knife is in memory of those who served in World War II, and those who fight today, and all past conflicts. This super sharp easy to open tactical knife has a carbide glass breaking tip and a sharp seatbelt cutter for emergency, rescue, and EDC (Every Day Carry). Specifications Overall Length: 8.25 Inches Blade Length: 3.6 Inches Blade Material: 440 Stainless Steel Blade Thickness: 3mm Sharpness & Functionality: Extremely Sharp, Functional Blade Features: Drop Point, Extra Wide, Black Oxide Finish Closed Length: 4.75 Inches Handle: Aluminum Grips, Green & Silver, Steel Frame Other Features: Seat Belt Cutter, Carbide Glass Breaker Finish: Dark Green, Silver, Black