3 STAGE KITCHEN KINFE SHARPENER: The 3 in 1 professional 3 stages kitchen knife sharpener includes: Fine Sharpening Slot for polishing; Ceramic Sharpening Slot for daily sharpening blunt knife; Coarse Sharpening Slot for sharpening old knife edg EASY TO USE: Simply place the blade in the sharpening slots and then sharpen in one direction and repeat 3-6 times, the blunt knife will be more sharp than before. (Please sharpen your knife with one direction only, do not move backward and forward) DURABLE HIGH QUALITY: Our knife sharpener with sturdy, safe and reliable 304 stainless steel and ABS plastic material. The no-slip, cushioned base grips the surface of your countertop to prevent any movement while youre sharpening your knives,avoid accidental injury. NONSLIP SAFE: The anti-slip rubber base ensures stability and safety, preventing the sharpener from slipping. Use it on any flat surface in the kitchen, including wood, stone or glass worktops. SUITABLE FOR A VARIETY OF KNIVES: Which works on most kitchen knives such as chef's knife, sushi knife, fruit knife, steel knives, steak knives, bread knives, paring knives, (Not suitable for serrated knives and ceramic knives.) Feature: 100% high quality. Safe and reliable, easy to operate. Easy to store and fit into any kitchen drawer and blend with your cooking utensils. Suitable for a variety of knives: Multi-purpose knife, chopper knife, bone chopping knife, chef knife, fruit knife, kitchen knife, etc. Function designed: Rough grinding of grooves: Keep the knife edge vertically pulled 3-5 times to roughen and restore the V-shaped cutting edge of the metal blade. Fine grinding groove: Keep the blade vertical and pull it in one direction twice, suitable for trimming and polishing the blade.