Product Information 1.Material: engineering plastic ABS / tungsten steel blade / electroplated bar 2. Size: 82*28*13mm/3.23*1.1*0.51in 3.Net weight: 27g 4. Featuring tungsten steel blade, electroplating bar. Ceramic knife burrs, suitable for cutting vegetable knives, western-style knives, fruit knives, etc. 5. Hold the knife sharpener in your left hand on the desktop, hold the knife in your other hand, put the blade on the V groove with your right hand, pull the knife back a little harder, pull it about 4 to 5 times, and the blade can become sharp. 6. Packaging: OPP bag Suggestion: Under normal circumstances, it is recommended to use it once a week or daily to keep your knife blade sharp at all times, after the knife is sharpened, wipe it with a damp cloth then dry it. Use a soft bristle brush to clean the metal blade or ceramic rod of the sharpener to keep the sharpening head of the knife sharpener clean!