The Microtech 121-1 S/E Ultratech Automatic Knife OTF Tri-Grip Black Plain Edge. This Knife Features an Elmax stainless steel Single Edge blade with a plain edge and a black finish. With the "tri-grip" texture thumb slide, tri-angle hardware, and an a glass breaker tip. pocket clip, come with black tactical hardware. This model features the tri-wing screws on the handle.