A squirrel's weight closes the seed port. Birds can feed from both sides of this feeder. Adjustable weight settings allow feeding only smaller birds, if desired. Unique TopLoc roof lifts for easy filling and locks securely to prevent squirrel access. Hang or pole mount (hanger and pole included). Capacity: 2 gallons (approximately 12 lb.). Weather-resistant, powder-coated steel body. Made by WoodLink.