SONGMICS Pet Playpen with Floor, Small Animal Pen, Pet Fence Indoor, DIY Plastic Enclosure for Hamsters, Hedgehogs, 57.1 x 28.3 x 22.4 Inches, White ULPC007W01 https://a.co/d/2vcMl9S
It's actually plastic that's just thick enough. I like that there were floor panels too so it's sturdier...