SPECIFICATIONSBrand Name: GRINDERCertification: CE / EU,EEC,SGSFeature: Eco-Friendly,StockedHigh-concerned chemical: noneMaterial: Tungsten carbideMetal Type: Carbon SteelModel Number: TG2017Origin: Mainland ChinaType: Sharpeners 1.Best Chef-Preferred KnifeSharpener- Our professional 4 In 1 knife sharpener is widely preferred by chefs as it can sharpen all types of blades Included Scissors. The best knife sharpener follows an expert process. Tungsten carbide restores. Diamond rods straighten and smooth. Ceramic rods polish and maintain. There's no guesswork here, just razor-sharp knives for effortless chopping, slicing, mincing, and dicing.2.Multiple slots, with different uses-ThisKitchen Knife Sharpener, have a Slot Coarse which is a diamond sharpening rod for repairing and straitening damaged blades. Slot Medium is a tungsten steel blade sharpens to restore the knife's V-shape. Slot Fine is a ceramic blade stage for polish and eliminates burrs on the metal blade. The Scissors Slot below is for scissors Grinding.3.Multiple slots, with different uses-ThisKitchen Knife Sharpener, have a Slot Coarse which is a diamond sharpening rod for repairing and straitening damaged blades. Slot Medium is a tungsten steel blade sharpens to restore the knife's V-shape. Slot Fine is a ceramic blade stage for polish and eliminates burrs on the metal blade. The Scissors Slot below is for scissors Grinding.4.Perfect chef knife with Universal use- Perfect for sharpening straight stainless-steel knives, ideal for survival knives, hunting knives, multi-function knives, steak knives, filet knives, pocketknives. This portable knife sharpener tool is built to be strong and durable for years of reliable use and is safe for both right and left hand. This kitchen knife sharpener is super straightforward and easy to use, even for first timers.5. Best Guaranteed After-Sales Service: We provide full refund or free replacement if there are any quality issues, no worries in making decision in purchasing our quality Kitchen Professional 4 in 1 Blade Sharpening Tool. We confidently stand behind the quality of our products. Get a Razor Sharp Edge in Seconds give it a try you won't be disappointed.6. Product Description: Our professional knife sharpener uses advanced technology to sharpen both fine edge (straight edge) and serrated knives. 2-Stage sharpening provides arch-shaped edges, which are stronger and longer lasting than hollow ground or conventional 'V' edges. Stage 1 uses 100% fine diamond abrasives to create the first bevel and Stage 2 ultra-hones the edge using advanced micron size 100% diamond abrasives to complete the second bevel. It is ideal for sharpening all types of knives, including kitchen, household, sporting and pocketknives.