Ideal for Budgies & othe small birds this box is manufactured from quality plywood. It has separate perspex & wooden sliding doors at one end to allow you to view the inhabitants without the risk of eggs or fledglings falling out. There is also a budgie concave, a flat board with a shallow round depression to help keep eggs safe from too much rolling around. There is an entry & exit hole with an external perch to help the adult birds come & go.