Hi!
I need a “new” mouse, and thus I went to a BookOff store. I noticed that, in some products, there are red/blue/green circular stickers…
Do you know what do they mean? It is maybe related with the product condition?
Pic: [https://ibb.co/D71mg3g](https://ibb.co/D71mg3g)
https://www.reddit.com/r/japan/comments/xnm7z4/circular_stickers_in_some_bookoff_products/