Designed to safeguard the entrance of bird nesting boxes, this anti-biting ring is ideal for parrot breeding cages. The sturdy metal construction withstands aggressive pecking, allowing the nesting box remains Its sleek design seamlessly blends with various birdhouse styles, making it a versatile addition to your bird supplies. Features -Color:Silver -Material:Aluminum -Size:9.00X9.00X0.50cm/3.54X3.54X0.20in -Firm material: crafted from stainless steel, these anti-biting guards are resistant to damage and can be reused multiple times -Chewresistant: the unique design prevents parrots from biting the box, protecting the structure and prolonging its use -Multipurpose: suitable for use in parrot nesting houses, wooden box openings, or as bird nest accessories, offering flexibility -Safe breeding space: allows a secure and comfortable environment for parrots to breed, promoting their health and safety -simple installation: designed for easy and quick installation, requiring no extra tools for setup Package list: 5 x nest box anti-biting rings