We have 3 sizes of chef's knives available in the Tamahagane San Tsubame series, 18cm, 21cm, 24cm. Whisper it very quietly, but we have it on good authority that these are technically the best blades that we sell. That does not mean the best selling or best design, but it you want literally the best quality Japanese knives that are available in one knife, choose a Tamahagane San Tsubame chef's knive. These knives are good for anything, but are so sharp they can be used as razors. The knives are so sharp due to the consitency and skill of Nosawa San's factory. Tamahagane blades regularly out perform better known brands in CATRA tests and tend to be the sharpest out the box knives available. These chef knives are particularly pleasant to look at, with the misty stainless steel material used in the construction and the hammered pattern to the blades.