Ventilation: Powder-coated metal lattice Accessories: 2-story with non-slip ramp; attic with removable floor; retreat area on upper level; hatch door to restrict access between levels; hinged roof with locking arm opens on each side; 3 doors with metal slide latches; compatible with TRIXIE Natura Outdoor Runs Size of animal intended for: Suitable for small animals such as rabbits and guinea pigs