Our patented 18" Wrap-around Pole Mount Squirrel Baffle is designed to protect your bird feeders from pesky squirrels. It securely fits around 1/2" to 1-3/8" poles and must be installed at a minimum of 4-1/2ft. high. The included metal clamp makes it easy to install with a Phillips head screwdriver, and the baffle stays firmly in place. For best results, keep your feeder pole at least 7ft. away from nearby trees, bushes, and fences.