I found these at a beach near my home (^^) It's a set of 3 large driftwood pieces! The driftwood in the back right of the first photo weighs 760g and is quite substantial. The first photo shows everything included. The photos from the fourth one onward show the pieces arranged differently. I haven't removed the tannins, but I have: Washed with water and a brush → Dried in the sun → Brushed ⚪︎ Although I've cleaned them, there may still be some dirt, sand, or mold that I couldn't completely remove. ⚪︎ If you plan to use these for living organisms, please clean them and remove the tannins before use. ⚪︎ I will pack them in a box as is. ⚪︎ There may be breaks, chips, or peeling of the surface during transport. Instant purchase is welcome!