There are 9 different versions of the Masahiro MH-V chefs knife with 5 different sizes from 18cm to 30cm. The most popular knife would of course be the MH-911 as the 21cm which is great for any task in the kitchen. These knives are simply stunning; perfectly weighted handles and blades and razor sharp edges. These knives have Japanese quality blades but with their POM riveted handles have a European look to them. All sizes except the 30cm are available in their fluted format which if you are cutting a lot of vegetables, stops them from sticking to the blades