This is a two-tier cage made by Iris Ohyama. It can be used for cats and small animals. It has large doors for easy access and comes with two sturdy wooden shelves. It also has casters for easy movement. I bought it when I got a cat, and after assembling it, I had it set up for 2-3 days, but the cat hardly went in it, so it's clean. I disassembled it about a week after assembly and stored it in a dark place. It has been cleaned and disinfected. It will be shipped in a cardboard box. There are no instructions. Size: Outer dimensions: Width 690 x Depth 545 x Height 1,150mm (when casters are attached) Lower door size: 460 x 405mm Upper door size: 320 x 350mm Shelf size: 285 x 465mm Inner dimensions: 615 x 475mm Please note that the food bowl and scratching post in the photos are not included.