Off Amazon for like $21 but I don’t recommend this enclosure for a vivarium since I’ve had to fix a few things so the isopods wouldn’t escape. This is the link through. It works but tape the sides were the joint is for the door as it has a hole they will escape from and make sure there isn’t dirt by the door corners as there is a gap as well but if you make the soil lower then the door your be fine. They can’t get to it. Also had to seal the enclosure. You can’t fully seal it through as the door being front facing has a gap. It still holds %60-78% humidity If you spay once a day.

https://www.amazon.com/gp/aw/d/B09F9C3FGS?psc=1&ref=ppx_pop_mob_b_asin_title