Heavy die-cast metal caps, ports, bases and clear UV stabilized polycarbonate tube. Seed deflector in tube allows birds to remove every last seed. Redesigned feed ports have raised ridge to divert rainwater. Perches are part of the seed port. Holds 1 1/4 quarts of seed. 4 feeding ports. Quick-clean removable base with blue finish.Size is Medium. Dimensions are 6 X 6 X 15.5 UPC Code = 026451124096