These are Aqua Beads beads. I'm selling them because my child no longer plays with them. We bought and made Aqua Beads of Demon Slayer and Mario. I wanted to make Demon Slayer again, so I bought more beads, so there are a lot. I have a set of unopened ones. There's a considerable amount. I check carefully, but I may miss something. Please refrain from purchasing if you are nervous. If you have any questions, please comment. m(_ _)m