This folding utility knife is a massive upgrade to the classic box cutterand much, much more. The perfect ergonomics along with extensive jimping on the stainless steel blade holder delivers power from your hand directly to the cutting edge. Simply and safely replace blades with a flick of your finger using the safetyguarded thumb button. Accepts all standard utility razor blades. Constructed of 420J2 stainless steel with a sure-grip textured glass/nylon polymer handle with pocket clip. Blade: 1.0 in / 2,5 cm