The B7 Domed Cage Feeder offers a larger-capacity tube with a wire cage that allows songbirds easy clearance through 1 1/2" openings, while keeping squirrels away from the seed tube. The feeder is easy to remove for cleaning, to maintain the health of the birds. A spring clamp holds the dome securely against the cage. It has 6 seed ports and comes in a durable polished pewter finish. 20" long, 10 1/2 " diameter.