Kershaw Knockout Olive/Black Pocket Knife (1870OLBLK); 3.25&rdquo; DLC-Coated 14C28N Steel Blade, Anodized Aluminum Handle; SpeedSafe Open, Flipper, Sub-Frame Lock, 4-Position Deep-Carry Pocketclip; 3.5 OZ Flipper allows the user to open the knockout easily with either hand for tactical use in strategic combat Speedsafe assisted opening provides a safe, quick and easy open The sub-frame lock gives extra frame support for hard to cut materials like branches, plastic piping, cartilage and bone