Japanese boxwood, tsuge. These chopsticks are very thin and used for picking up sweets.
Two sets of thin bamboo chopsticks, lacquered. I think the dark spots were made by burning. The bottom tip of those chopsticks are very sharp, so when I store them, I wrap the tips with tissue papaers. Ocha utensils often come in washi paper.
Bamboo, Green lacquered
Bamboo, Red lacquered and Reversible