The Onyx EDC Folding Knife from Outdoor Edge is sharp, strong, and changes blades safely and easily at the push of a button. The black-oxide coated blade holder supports the razor-blade for the strength of a standard knife and sharpness of a surgeon's scalpel. The 3.5" Japanese 420J2 stainless razor-blades are precisely heat treated and hand finished shaving-sharp. The one-piece Grivory polymer handle features a Trimmond texture pattern for a non-slip grip, even when wet. A double-sided thumb stud allows for easy, one-handed opening. The replaceable pocket clip contours with the handle so it feels like an integral part of the grip. The Onyx EDC Folding Knife includes three replacement blades. Manufacturer lifetime warranty.