The Opus Squirrel Proof Bird Feeder with Shelter 3.5 lb. (5109) is artistically designed to give your birds a durable and safe feeding station to enjoy with. It is constructed with an advanced weight-activated seed protection system and a heavy duty locking metal cap. The feeder is intended to be resistant to any chew, rust, squirrel damage and bad weather. It has a clear plastic reservoir to easily monitor the seed level and it is equipped with four feeding ports to accommodate a lot of birds. The feeder is ideal for kinglets, finches, goldfinches, sparrows, woodpeckers, juncos, chickadees, wrens, nuthatches, siskins, titmice, and redpolls. The container has a capacity to hold three and a half pounds of seed. It is easy to fill and clean due to its wide mouth top. To mount, simply hang the unit at your yard or garden using its seven inch long cable.