Green Solutions line provides customer with a maintenance-free durable recycled material that produces made bird feeders and bird houses.Features. Side opens to clean and view. Recycled bluebird house used 20 plastic containers. Maintenance - Free. Durable recycled material. Patented expanded mesh screens drainage to keep seed dry. Easy Care Easy Clean - keeps its new appearance year after year. Guaranteed never to fade crack or split. Stainless steel fasteners for extra-durability