This open-plan nesting box is made from high-density, impact-resistant polyethylene, that is easy to clean, and will not rust or rot. Easy to mount with keyhole screw slots, or can be simply mounted on a shelf or bench. Open top and back for best ventilation in warm climates. Easy access to eggs. Floor slopes slightly to back to a drainage hole. Dimensions: 43cmW x 31cmD x 31cmH.