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, are preset at a fixed sharpening angle, and are also reversible and replaceable.The patented scissors sharpener included in the handle of the 10-second knife and scissors sharpener features a specially designed floating round ceramic rod, which conforms to the exact angle of your scissors every time.It works on both left & right-handed scissors.Type: Sharpener ToolHandle Description: PlasticSharpener Material: Carbide, CeramicSharpener Type: Fine, Coarse