Material:STAINLESS STEELType:Sharpeners Origin:Mainland China Product Information Product Name: Knife Sharpener Material: ABS + Steel Grinding wheel material: Diamond + tungsten steel + ceramic Product Size: 20.5*4*6.5cm Colour: Black Product weight: 150g Number: G800 Scope of application: fruit knives, kitchen knives, etc., not suitable for ceramic knives, serrated knives, scissors, etc. Use: Simply place the dull blade on the sharpening slot, it only takes a few seconds to make the blade sharp matters needing attention 1. The discoloration of ceramics after use is a normal situation 2. Do not place the sharpener in the dishwasher or water, please keep it dry and clean When grinding the knife, use light force, push and pull backwards, and do not grind back and forth to prevent damage to the blade 4. Ceramic knives can only be finely ground in ceramic slots 5. This product is not suitable for grinding serrated blades