A-6F is first tube feeder invented in 1969 by Droll Yankees – so it has stood the test of time. Virtually millions of these feeders have sold and for good reason. It has metal die castings that can’t be chewed by squirrels, powder coated finish that won’t chip or fade, and a UV stabilized polycarbonate tube that won’t yellow with age. You can draw many perching birds such as chickadees, titmice, finch, Goldfinch, siskin and others with this 6 station feeder.