The handles of the Seki Magoroku Kinju and Hekiju series differ in shape and material. The hexagonal handle of Kinju knives is made of laminated, reinforced wood for a comfortable feel when cutting. The handle is extremely water-resistant, thanks to the use of high-quality natural wood which is treated by a special process. The handle of the Hekiju knife, developed for left-handers, is more rounded than that of the Kinju series and consists of a robust resin with leather-type embossing.