The world is going green! National audubon going green recycled series help conserve the environment. These products are made of recycled plastic (contains 90% recycled plastic). Won t absorb water, thus feeder or house will not harbor mold or bacteria and ensures a healthier environment for birds. Hand-crafted of zinc chromate screws and made in the usa! This ornithologically correct audubon recycled plastic wren house features easy open front for cleaning. Size is 8 Inch. Dimensions are 5.3 X 5.2 X 8.3 UPC Code = 715038308423