Proper Way To Sharpen A Knife Is To Insert The Blade Into The Slot And Then Pull It Back (DonT Move Back And Forth). Slot 1 (Abrasive Diamond, Sharpening Scissors): Open The Scissors And Hold The Handle Firmly, Then Insert The Scissor Blades Into Slot 1. Tighten The Emery Roller With The Scissors, Then Pull The Scissors Back Several Times. Slit 2 (Tungsten Steel, Coarse Ground): Use This Only If The Knife Blade Is Very Dull. Using A Little Downward Force, Then Pull It Back 3 Times. Slot 3 (Diamond Abrasive, Medium Grind): Always Finish With This Step To Remove Burrs That Result From The Edging And Coarse Honing Process. Without Using Pressure To Pull The Blade Back 5 Times. Slot 4 (Ceramic Shank, Fine Sharpening): Hold The Sharpener On A Solid Surface. Pull The Knife Slightly Into The Slot, Then Pull It Back For 2 To 4 Hours. 3 Times Or Until Sharpened.Recommended: Sharpening With Slot-4 (Ceramic) 3 To 5 Times When The Knife Is Hard To Cut; Cut Ribbed Pork With The Skin. Sharpen With Slot-3 (Diamond Abrasive) 3~5 Times Then With Slot-4 (Ceramic) 3~5 Times When The Knife Is Hard To Sharpen. Cut Lean Meat. Sharpening With Slot-2 (Tungsten Steel), Then Slot-3 (Abrasive Diamond), Finally With Slot-4 (Ceramic), Every 3~5 Times When The Knife Is Hard To Sharpen. ; Cut Fruits And Vegetables.Features: Material: Abs+Tpr+Eva+Ss Item Size: 230 * 58 * 88Mm / 9.06 * 2.28 * 3.46In Item Weight : 251G / 8.87Oz Package Weight: 301G / 10.65Oz Package Size: 23.5 * 9 * 6Cm / 9.25 * 3.54 * 2.36Inpacking List: 1 * Display ;Knife Maker