Manual Red & Black Knife Sharpener 3 Stage Sharpening Tool for Ceramic Knife and Steel Knives.2051 Manual Red & Black Knife Sharpener 3 Stage Sharpening Tool for Ceramic Knife and Steel Knives Description : HOW TO USE Draw knife in the same direction with slightly downward head but not too much pressure. Do not pull the knife backward and forward. Easy to use tool made from good quality materials for quickly sharpening blunt knives right at home. 3 STEP KNIFE SHARPENING SYSTEM 1st Tungsten Steel Slot sharpens knife and restore its V shape. 2nd