It helped in keeping squirrels out of bird feeder

This Deflector is sturdy, and the hardware that easily screws together under it is so simply to install in a minute. It fit our 4x4" post perfectly, and it stays in place. However, we have a nearby fence that allows those pesky squirrels just enough space to climb it and fly through air like "Rocky J. Squirrel", and they are able to reach the bird feeding post above the baffle by landing on the top T-Rail. From there, they navigate to our hanging feeders. If your feeders are located where squirrels cannot possibly climb on an object and fly through air, this baffle should work for you because they cannot climb the post from the ground and get past the Deflector. I am giving it 5 stars, because it does do what it is supposed to do if you position your feeder properly.