PREMIUM QUALITY: The 4 sharpening grooves are made of tungsten steel, diamond rods and ceramic rods; the main body is made of light and strong HIPS plastic, which is durable and durable. This knife sharpener features a four-stage system that preciselyreshapes every angle of the knife. 4 groove sharpener: 1st tungsten groove - rough and repair dull knives. Second Diamond Slot - Repairs and straightens damaged blades. Slot fine-tuning for a clean finish. Finally, the "Z" slot - to shape the scissors, reshape angles, evenly sharpen andrestore edges. Better than a whetstone. Safe and easy to use: Just place the dull blade on the sharpening slot and gently pull the knife a few times (don't push it back and forth). Whether you're right-handed or left-handed, the ergonomic handle and non-slip rubber base let you recover yourknives in seconds MULTI-FUNCTIONAL: This knife sharpener is specially designed for your kitchen. A beautiful and simple design that looks great in your kitchen and doesn't take up available space, fits easily into your kitchen drawer. You can sharpen stainless steel, hardsteel, ceramic, pocket knives, broadswords or pocket knives with scissors. .