The easiest way to sharpen knives and to keep them sharp. This 2-stage pull-through, V-shaped Knife Sharpener with tungsten and ceramic steels is particularly suitable for those who do not feel comfortable using Sharpening Steels or Whetstones. With this Sharpener, the knife is simply drawn through the guiding notches a few times – the notch with tungsten steel is used for coarser sharpening (for blunt blades) while the ceramic notch is for fine sharpening (for coarsely sharpened or moderately-sharp blades) – and results are quickly achieved. Two levels are available for sharpening knives, depending on how much cutting performance has been lost. The first level, “Coarse”, is recommended for when the knife is blunt. The second level, “Fine”, is suitable both for fine sharpening following on from the first level or for regular resharpening of the blade. Knives with a serrated edge should only be sharpened using the second level in order to remove any burrs that have developed. The traditional company based in Solingen, Germany, has designed the knife sharpener to make it easy for anyone, even without experience, to sharpen knives. The blade of the knife is inserted vertically into the slot with the grinding slats. The rear end of the blade is placed between the slats and pulled gently through to the tip, keeping the blade straight. Meanwhile, the handle of the device should be held with the other hand. The ergonomic handle and the non-slip base of the knife sharpener ensure safe handling. The process is repeated depending on the bluntness of the blade. In order to achieve the best possible result, the knife blades should be cleaned before and after every grinding process.