4 IN 1 KNIFE SHARPENER: ADORIC better knife sharpener has 4 knife sharpeners in which all types of blades can be sharpened.Knife digger gives you 4 different options.2 tungsten steel levels for scissors and coarse sharpening, diamond level for fine sharpening, ceramic stone level for precision sharpening.EASY TO USE: Simply place the dull blade on the sharpening slot and pull the knife backwards 2-3 times until your knife is sufficiently sharpened.TIP: To achieve the best effect with this knife sharpener, sharpen your knife in one direction only.When sharpening scissors, you need to find a suitable angle to avoid damaging the scissors.CONVENIENT AND DURABLE: This knife sharpener is large enough to be handled properly and small enough to fit in any kitchen drawer.Our chef knife sharpeners have passed 3000 times lifespan test, you can keep it for almost 11 years!SAFE ENGINEERED: The padded non-slip pads are made of stainless steel, diamond abrasives and high quality ABS plastic, matte texture and non-inferior aluminum skin wrapped plastic, providing the optimal control for a safe workplace.You can easily grip and use the knife sharpener with the ergonomic handle.