I found these at a beach near my home (^^) This is a set of 16 items, including bamboo and bracket fungus! The first photo shows everything. I haven't removed the astringency, but I have: Washed with water and a brush → Dried in the sun → Brushed. ⚪︎ Although I have cleaned them, there may be some remaining dirt, sand, or mold that couldn't be completely removed. ⚪︎ If you intend to use these for living organisms, please clean and remove the astringency before use. ⚪︎ They will be shipped directly in a Takkyubin Compact box. ⚪︎ There may be some breakage, chipping, or peeling of the surface during transport. Instant purchase is OK!