This bird feeder features advanced squirrel-proof technology, specifically a motor-driven, battery-powered weight-activated perch ring that denies squirrels, grackles or any other such pest access to the seed. U.S.A. Seed is accessed through 4 seed ports that are arranged for optimal feeding positions and fed by internal baffles that direct the 5-lb. seed capacity Tube is made with a UV-resistant polycarbonate that is dependably durable and wont yellow with age Metal powder-coated cap fits snugly onto the tube