This is a Critter Crib Mouse Habitat - 1 Level - 40L X 27W X 27cmH - Purple (Pet One). The Pet One Critter Cribs give your mice room to roam and a place to play with two different sizes and colours to choose from. The Critter Cribs are equipped with a deep base, to help eliminate scattered food and litter. Each Critter Crib includes a drink bottle, exercise wheel, feeder bowl, ventilation cap, tube set and a sky view attachment. Wire thickness: 2mm, Wire gap : 8mm, Inside height: 25.5cm.