Cedar lumber forms the base, upright supports, and roof, with four clear plastic panels creating a seed reservoir. This feeder holds 9.5 quarts of seed. A plastic baffle in the center of the reservoir keeps the seed moving to the ports, preventing buildup. Each side of the feeder offers room for birds and the wooden rim around it keeps the seed in place. The green, perforated base allows water to drain. One side of the roof opens, to clean or refill the feeder. Place a mounting bracket (not included) on the base of this feeder to post mount it. The rot resistant cedar forms a long lasting feeder. Made in the USA.