The Kai knives are made of Damascus steel up to 32 layers with a VG-10 steel core. This is an extremely rust-resistant cobalt alloy with a hardness of 61-62 HRC. Each blade of a Kai knife is coated in a special way, which creates fabulous lines that are so typical for damask steel. Each Kai knife is sharpened by hand. The handles are made of black laminated Pakka wood and have the typical Japanese "chestnut" shape, which makes these knives perfectly ergonomic.