This is a silent wheel that came with the Shiny 45. It has been disinfected with alcohol. I have one in stock, and if you buy two together, I can offer them for 3000 yen. I used it for about a week, but it didn't fit the size of my hamster, so I removed it. It's relatively clean, but please understand that it is a used item. I will wrap it in cushioning material and ship it via anonymous Yu-Pack delivery.