Restoring dull knives in 3 easy steps, this 3-Section Knife Sharpener's 100% industrial diamond abrasive wheels hone, reshape and sharpen blades with ease and precision. Specially designed to sharpen and restore both straight edge and serrated knives with precise, consistent angle control, each of the 3 slots works an essential part of the 3-stage knife sharpening process. Slot 1 repairs and straightens blades; slot 2 sharpens blades for a burr-free edge; slot 3 fine tunes and polishes blades. Designed for easy left- or right-handed use, the non-slip base keeps this small knife sharpener in place while in use. Simply place blade in each section and gently pull knife through the kitchen knife sharpener a few times for quick, easy sharpening. Stainless steel and tungsten steel with plastic housing. 8 1/2 x 2 1/2" x 2". By Chef's PrideTM.