Tsuge (Littleleaf box or Japanese box) comb
Tsuge (Littleleaf box or Japanese box) is a kind of plant found in Japan and Taiwan. It has very fine fiber and thus often used in handcrafts. In Japan the chess used to be made of this plant.
Since it is an expensive material, many items have been taken over by other material. However, there still is a tradition to use a comb made of Tsuge, which is very hard, solid and at the same time flexible. The longer you use, the better feel you will get.
Unlike plastic, it is possible to use this comb for your entire life!