A sharpener that allows you to always have sharp knives Using tungsten steel blades, in addition to high hardness, it can reach a high temperature above 500 , with sufficient toughness, without damaging the blade. Easy to use, preset 20 included angle, so that novices can easily sharpen the knife. Material and workmanship are different from what you have seen before, it is stronger and more durable. Cost-effective, owning it can save you cost the of repeated purchase of knives. 3 SECONDS Push and pull back and forth, and immediately have a sharp new knife in 3 seconds. With this knife sharpener tool you can always use the new knife. 2 MINUTES BECOME ADEPT It's easy to use, with a tungsten carbide groove that fits the blade, helping you quickly master the sharpening skills. 1 HAND ENOUGH Press the bar and it can be attached to any smooth surface, it will save your hand from any accidental cuts. Even you can unlock the new experience of sharpening the knife on the wall. SMALL AND LIGHT Less than the size and weight of a tennis ball, it takes up almost no space in the kitchen, puts it in your pocket or backpack without any burden when you go outdoors.