MATERIAL: The high-quality tungsten steel treated with high temperature ensures efficient and sharp sharpening effect.The plastic shell is non-toxic and tasteless.The blunt knife becomes sharp immediately after 2-3 times back and forth. THOUGHTFUL DESIGN: The thoughtful design of the suction cup is non-slip and not easy to cut.Power grip suction attaches securely to any smooth surface. COMPACT TOOL: The overall product is exquisite and compact.Small enough to keep on your counter, big enough to do the job. SCOPE OF APPLICATION: Widely used in kitchen knives, kitchen knives, fruit knives, chef knives, etc.Whether it's in the kitchen at home or in the outdoor camp, the knife sharpener can make your knife sharper at once and make it easier to cook. HOW TO USE: First find a clean surface to suck the suction cup. Then put it on the table and press the handle firmly, and you can easily have a sharp knife with a few strokes back and forth.(NOTE: There must be no air in the suction cup, otherwise the sharpener will become unstable and easy to cut yourselfProducts from LUOLV's store