Spyderco C122GBNM4P Tenacious Tenacious Plain Edge.  Brown ergonomically milled G-10 handle. Walker Linerlock with jimped liner. Full skeletonized steel liners. 4-way pocket clip....tip-up, tip-down, left or right. Enlarged opening hole. Spine jimping. Flat grind. Closed: 4 7/16" Overall: 7 3/4" Blade: 3 3/8" Satin CPM-M4 High Carbon steel blade. 4 oz. (115gm) PRC

NOTE:  M4 is not a stainless steel.  Keep blade clean, dry and lightly oiled to help preserve the finished.  Darkening, spotting or minor rust are to be expected and are your assurance of a superior high carbon steel blade.