【EASY TO USE】- Simply pull your blade back and forth through kitchen knife Edge,sharpen your knife razor sharp in seconds. 【SHARPEN KNIVES IN SECONDS】- With Razor sharp edge.Only seconds to sharpen dull knives. 【SHARPEN,HONE,POLISH VARIOUS KNIVES】- Two independent angle adjustable spring action arms make it easy to sharpen different kinds of knives,for example,Japanese single bevel blades,Chef's Knives, Pairing Knives and so on. 【KNIFE SAVER】- Made of Ultra-hard Tungsten Carbide that flex and contour to many Old, dull even serrated blades.You don't have to buy new one, buy one sharpener save all. 【DURABLE CONSTRUCTION】- With 2 solid stainless steel.This sharpeners made of ultra hard tungsten carbide can using for 5 years.