This giant 18 1/2" Seed Tray holds 1 pound of seed. The platform attracts a wide variety, including ground feeders. It catches spilled seed when mounted below a feeder. Highly effective squirrel guard when placed 4' or more from the ground and 8' from trees or buildings. The UV stabilized polycarbonate construction protects against the sun's damaging rays. Mounts on a 1" diameter pole with the included Complete Clamp (#17 CC1).Made in the U.S.A.