Product information: Material: Stainless steel Handle material: chicken wing wood + copper nail Size Information: Full length: 29.8c m Blade length: 19.5cm Knife width: 6.3cm Blade thickness: 2.8 mm Precautions: *1. After the knife is used up, wipe it with a clean cloth and dry or apply a little oil to prevent the knife from oxidizing and rusting, losing its brightness and sharpness. *2. After the knife is used up, it should be inserted in the knife holder, and don't throw it around to avoid damage to the cutting edge. *3. The knife should be sharpened frequently, and the positive and negative times should be the same when sharpening the knife; the two ends of the sharpening should be in the middle.