ONECOOK Manual Kitchen Knife Sharpener 3 Stage Professional 4 in 1 Knife Sharpening with Scissors Sharpening Slot Black

?Product Features: 3-Stage Knife Sharpening System (Coarse, Medium and Fine) Scissors Sharpening Slot Solid ABS Plastic Material Non-Slip Design Easy to Use Easy to Hold Easy to Clean Perfect Size - 7.5L x 1.7W x 2.8H in. ?How To Use ONECOOK Manual Kitchen Knife Sharpener? Step 1: Use the ?Coarse Slot to repair chips and sharp dull knives. Repeat this action 5-10 times. Step 2: Use the ?Medium Slot to refine blade edges and get a knife razor-sharp. Repeat this action 5-10 times. Step 3: Finally use the ?Fine Slot to polish blade and get a very sharp knife. Repeat this action 5-10 times. ?Kindly Tips: ?Do NOT use this knife sharpener for serrated blades and ceramic knife. ?Do NOT pull the knife backward and forward in the slot. One direction ONLY.