The Crawford Model 1 is made from Japanese 4034 Stainless and is hollow ground to a thin, razor edge that will cut at the slightest touch. And, because a flipper is integrated into the tang, it can be opened lightning fast! The handle of the Crawford Model 1 is made from a strong (yet economical), glass reinforced nylon that includes traction rubber inlays, and a low-profile pocket clip. To keep your fingers safe from potential harm, Cold Steel has equipped the Crawford 1 with a leaf spring lock, and a (patent pending) secondary safety mechanism that, when engaged is extremely resistant to shock and impact.