this is a professional knife sharpener, easy to use by pulling the knife through each slot a few times. the handle is ergonomically shaped for maximum grip, and suitable for both left and right-handed users. 3-step knife sharpening system the 1st diamond sharpening rod repairs and straightens damaged blades. the 2nd slot sharpens to restore its v-shape. the 3rd slot fine tunes for a clean polish. suitable for most knives. do not use for ceramic knife and scissors. how to use simply place
the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening. specifications material: abs+ss size: 8 x 1.89 x 2.87 inch metal type: stainless steel
