MTECH USA M-A1001 Series US Marines Spring Assist Folding Knife, Half-Serrated Blade, 5-Inch Closed Spring assist Folding knife offers rapid one-handed deployment, locks securely into place with liner lock Half serrated, black stainless steel tanto style blade Durable black Nylon fiber handle with thumb stud Pocket clip for easy and safe carry; Glass breaker for emergencies 5-inch closed length; 3.5-inch blade length with 3.5 mm thickness 5" CLOSED LENGTH Stainless Steel Blade 3.5Mm Half Serrated Black Plastic Handle Includes Glass Breaker