Quality - Built for Long - Term Use：Constructed from hot dip galvanized material, this bluebird hole protector is extremely durable and rust - resistant. Its silver finish not only looks great but also ensures it stays in excellent condition throughout the year. Please note that the package does not include a bird house. Enhanced Nesting Appeal：This protector is more than just a safeguard; it's designed to create a cozy environment that encourages bluebirds to nest and breed. By making the nesting area more inviting, it increases the likelihood of your feathered friends choosing your birdhouse. Effortless Installation：Your purchase comes with 2 guards, 8 screws, and 8 gaskets, enabling a straightforward installation process. For smaller birdhouses, simply place the cage, buckle it outwards, insert the gasket, and screw it in. Installation has never been easier! Versatile Protection for Multiple Species：With safety at its core, this bluebird hole protector is suitable for various bird species. It effectively guards against potential threats, providing a secure space for birds to raise their young. The product is lightweight, so no over - bending is required. Just position it near the aviary hole and install the gasket and screws. Sturdy Predator Defense：Made of high - quality stainless steel wire mesh, these 2 predator guards are built to shield bluebird babies inside the nesting box. They keep out snakes, sparrows, and other predators, while allowing bluebirds to enter and exit freely. Designed to fit most standard - sized bluebird houses and boxes, it's a must - have for protecting your avian visitors' nests. 2 Pcs Blue Bird House Predator Guards, Wire Entrance Guard, Snake Guard, Birdhouse Hole Protector for Eastern Bluebird and Their Babies Safe