THE SPYDERCO WAVE 4 ENDURA * JUST OUT The Wave Blade-Opening feature made popular and patented by Ernest Emerson of Emerson Knives. The Wave is a hook curving out the top of the knife’s blade. When removing the knife from a front pocket the Wave catches the pocket’s edge quickly opening the knife blade ready to use. | length overall | 8 13/16" (224 mm) | blade length | 3 13/16" (97 mm) | blade steel | VG-10 | | length closed | 5" (127 mm) | cutting edge | 3 7/16" (88 mm) | weight | 3.6 oz. (102 g) | | hole diameter | 1/2" (13 mm) | blade thickness | 1/8" (3 mm) | handle material | FRN | |