The Perky-Pet® Green & Black Finch Tube Wild Bird Feeder features a mesh wire design to provide a feeding spot for both clinging and perching birds. The feeder is made of all metal, and contains no plastic, and no wood. It includes a baffler top to prevent squirrel access while at the same time providing shelter for birds as they feed. Feeder is low-maintenance, easy to clean and is sure to keep birds happy all season long!