Length: Approximately 20.5 cm Width: Approximately 12 cm Height: Approximately 9 cm I used one of them only once, but I don't know which one. Since it's a sponge, I think you can wash and reuse it. There are some chips, so I think those who are concerned should refrain from purchasing. As you can see in the photos, it's a little dirty if you look closely. The insect cage is scratched and has daily wear and tear, so please consider it as a bonus. I can't lower the price without the insect cage, but I might be able to lower it a little. Thank you.