This is a set of 41 round mirrors, each 8cm x 8cm. 15 of them are still in their original packaging, while the rest are loose. If you'd like to buy individual mirrors, please leave a comment. I received these as a gift, so I don't have many details, but it seems they are these products from Monotaro: ↓ https://www.monotaro.com/p/5818/9452/?cq_med=pla&cq_plt=gp&utm_medium=cpc&utm_source=google&utm_campaign=246-833-4061_6466659573_shopping&utm_content=77481174876&utm_term=_380604224319_x_pla-876575642627&utm_id=58189452&gad_source=1&gad_campaignid=6466659573&gbraid=0AAAAADNqOHDe5buiXtboSiaeBT-0729On&gclid=EAIaIQobChMIr96C6ZfTkQMVLi57Bx0-eCNPEAQYASABEgItTvD_BwE