It connects the front and the back, allowing the parrot to enter and not hurt tail. Thick plush fabrics provide the good place for your parrots. Increasing the environmental stimulation of birds,reduce boredom. This Nest gives your lovely parrots or birds a warm and comfortable hut to rest. Size:Small size: 28 x 18 x 14cm/11.02' x 7.09' x 5.51',Medium size: 35 x 25 x 18cm/13.78' x 9.84'x 7.09',Large size: 42 x 30 x 22cm/16.54' x 11.81' x 8.66'.