Name: Outdoor Portable Sharpener_x000D_Material: ABS plastic + tungsten steel blade + pp plastic_x000D_Size: 14*2*5.5cm_x000D_Weight: 40g 11. Feature: With carbide tungsten compound blade, mirror polished, suitable for kitchen cutters, western food cutters, and fruit cutters. 22. Usage: Put the cutter on the table, hold the cutter in the other hand, put the sharpener on the cutter, pull it back, and pull it about 4 to 5 times, and the blade will become sharp. 33. Suggestion: Under normal circumstances, it is recommended to use it once a week or daily, and keep your blade sharp at all times, after the cutter is sharpened, wipe it with a damp cloth, and then dry it. 44. Cleaning tool: Use a soft brush to clean the metal blades of the sharpener to keep the sharpening head clean! 55. 1*SharpeneThis cutter sharpener is not suitable for serrated cutters. When sharpening the cutter, do not use too much force, and do not grind back and forth, so as not to damage the blade. It is normal for the ceramic rods and metal blades in the sharpener to become dirty. Do not put the sharpener in the dishwasher or water, it should be kept dry and clean.