This hanging Seed Saucer is constructed with high impact UV resistant plastic and the hardware is corrosion proof. Measures approximately 16 1/4 inches in diameter, is 3 1/4 inches deep and weighs only 1 1/2 pounds. The basin has water drainage holes for year round use. In addition, the removable grid keeps the seeds from spilling onto the ground in windy conditions. Hang under any hanging bird feeder.