Product details:

Multi-functional night stand pet furniture, can be used as pet house or litter enclosure, Indoor Only? Easy to assemble and clean. With Latch holding the door and keep your pets from escaping? Inner Shelf Cannot BE Removed. Mat and litter box not included? Two stories for 1-2 cats, hide the litter box in the lower section, the middle layer hole diameter: 8.2 Inches? The lower round window is covered by fully transparent acrylic glass.