The wooden pestle, called a "surikogi", is to be used with the suribachi mortar.In Japanese cooking, the suribachi is used to crush sesame seeds as well as for various pastes.
You'll find that the suribachi is an essential tool for preparation of many common Japanese sauces, dressings, and pastes.
It can also be used to efficiently grind fresh or dry herbs and spices, and is an invaluable tool for any kitchen.
It is made of 100% natural Magnolia Obovata wood (harvested in Japan) rather than clay to keep the pestle from wearing down the ridges in the mortar.
It has a hole at the top end for easy hanging and tapers at the end for an easy grip.