These wooden sticks known as kuromoji are made from a Lindera tree (kuromoji tree in Japanese) and its bark, branches and leaves have a nice fragrance.
They are used as fork or cutting knife to eat Wagashi (Japanese sweets).
please soak them in water for 10mins then dry with a towel.
Water will make the color and fragrance stronger.
When they are too dry, they might bent.
To avoid mold, please do not soak in water too long and make sure to dry well.