Smith's 10-Second Knife & Scissors Sharpener features a V-shaped knife sharpening slot with two crossed carbide blades. The carbide blades allow you to put a quick edge on your knife with just three or four strokes and are preset at a fixed sharpening angle for guaranteed results every time. Just three or four strokes through the sharpenera |to put the edge back on your household scissors. The patented scissors sharpener (built into the handle) features a specially designed floating round ceramic rod. This floating rod conforms to the exact angle of your scissors during use and works on both left and right-handed scissors. Knife and scissors sharpener Sharpens all types of straight-edge knives; Sharpens left or right-handed scissors Preset sharpening angle provides guaranteed results Quick, safe and easy to use; Reversible and replaceable carbide blades Abrasives: Carbides:Coarse; Ceramic: Extra-Fine (Grit 1,500)