The Gerber Covert knife combines the classic Applegate-Fairbairn design with the ease and speed of F.A.S.T. assisted opening technology. Using Gerber's proprietary forward action spring technology--or F.A.S.T.--it delivers one-hand opening for quick deployment of the titanium-coated blade. The full-sized G-10 handle gives you a tacky grip in any condition. The Covert's blade measure 3.7 inches, and it has an overall length of 8.7 inches when open (and 5 inches when closed). Backed by a limited lifetime warranty.