Color and Size: Gray ADJUSTABLE ANGLE BUTTON: knife scissor sharpener featured angle adjustment button from 16 to 22 degree so that you could set the correct angle to sharpen knives of different sizes, thickness and edges to their proper edge. It is considerate service that the words on our sharpener showing customers suitable sharpening angles for different knives. 4 in 1 KNIFE SHARPENER: Our knife and scissor sharpener comes with 4 slots which can sharpen all types of blades. Slot 1 is for Scissors Grinding. Slot 2 is Coarse Grinding for dull metal knives. Slot 3 is Medium Grinding for daily usage. Slot 4 is Fine Grinding for Ceramic Knife or finishing and polishing edges. Key Product Features EASY TO USE: Professional Kitchen sharpener is designed to be user friendly. Simply put the dull blade on the sharpening slot and pull it backward 5-8 times until your knife is sharpen enough. HINT: In order to get the best effect out of this knife sharpener, sharpen your knife with one direction only.ERGONOMIC HANDLE & SAFE: Ergonomic designed handle provide comfortable and easy grip, far away from sharpening rods, secure your safety. Knife sharpener with heavy duty non-slip rubber under its bottom which provides more stability base when sharpen your knife.Product number: X2561