[Good Materials: The cockatiel nesting box is made of natural pine has no paint and is safe and durable. Bird nest for cage suitable for parakeet budgie lovebirds conure finch parrot canary create a warm comfortable and safe paradise for your birds Multifunctional Design: The top-hinged lid opening lets you quickly clean the inside of the bird box and provide a hygienic habitat for your bird. The built-in baffle protects the eggs by preventing them from rolling Easy to Use: Parakeet nesting box are designed to create a comfortable and safe breeding environment for birds. The smooth circular entrance allows your bird to enter and exit easily without injury. The box is equipped with a bird stand which is an ideal place for birds to roost and feed Easy to Install: Parakeet nest box are equipped with bolts spacers and nuts for quick and hassle-free installation. It can be easily mounted outside or inside the birdcage. The bolt lock appearance is stable and beautiful and the arc design does not easily fall off Encourage Natural Reproduction: We encourage birds to breed and nest naturally the bird box interior is spacious and comfortable an ideal and secure environment for nesting and hatching eggs Product Package: We offer you a choice of two sizes M: 7.9 x 4.7 x 4.7 inch ( Export 5.5 cm/2.1 inch ) L: 9.8 x 5.3 x 5.3 inch ( Export 5.5 cm/2.1 inch ) place the bolt and nut gaskets required for installation]