Droll Yankees SQPM Pole Mount Squirrel Guard Squirrel-proofs your feeder or nest box when placed 8' from trees or buildings and 4' off the ground UV stabilized polycarbonate is highly durable and impact resistant Proudly made in the U.S.A. Use it to protect pole mounted feeders and nest boxes Collet makes dome's height on pole adjustable Saves seed from squirrels and the elements 15 inch diametered dome is a big obstacle for squirrels U.V. stabilized polycarbonate that is extremely durable and resists yellowing