Droll Yankees Feeder Ring PullThe A 6F Classic Bird Feeder, invented in 1969, was the first tubular bird feeder. This updated version, A 6RP Classic Sunflower Bird Feeder, stays true to the iconic classic while adding the Ring Pull Advantage feature for easy cleaning. Now its easier than ever to give songbirds just what they need fresh food from a clean, hygienic feeder. Droll Yankees Ring Pull Feeders offer a fresh, modern, no tools needed approach to cleaning with the Ring Pull