Perfect Four-In-One Designfour-Level New Rotation Mode That Can Be Adjusted At Will, Divided Into Ceramic Sharpening Grooves for Scissors and Serrated Knives, and Coarse and Fine Grinding Grooves To Meet Your Different Needs. Simple and Safe Operation The Non-Slip Rubber Pad On The Underside Ensures A Firm Stand So That It Does Not Slip, Simply Place The Knife In The Groove and Sharpen Three To Five Times To Quickly Sharpen Damaged or Blunt Knives Is Damaged. . Professional Quality Made From Premium Tpe Material and Tough Abs Plastic, You Can Be Assured That Our Sharpeners Are of High Quality. The Inside of Each Cutting Edge Consists of Tungsten Steel, Diamond Inserts, Ceramic Inserts and Ceramic Plates. The Quality Is Very Good. . Very Practical Knife Sharpener Is Divided Into Four Gears, The First Gear Is Usually Used To Sharpen New / Blunt Knives. Second Pass Roughing Is Used for Routine Tool Maintenance. The Third Stage Fine Sanding Is for Polishing Impurities After The Coarse Sanding. Serrated Knife/Scissors Are Specially Designed, The Ceramic Plate Can Be Rotated 360 Degrees. Cover Your Daily Needs