Balance stones. I previously purchased them for just under 6,000 yen. They were used by my child for playing at home, so the surface is relatively clean, but the rubber on the bottom has some wear and tear, and there is some evidence of use (as shown in images 11-12). However, they are still usable, so I hope someone can make good use of them! A total of 11 pieces: L L 1 piece L 2 pieces M 3 pieces S 5 pieces They didn't take up much space when stored because they could be stacked. I plan to ship them stacked as well.