Droll Yankees Onyx Clever Clean 18 inch Sunflower/Mixed Seed Feeders Droll Yankees Onyx Clever Clean 18 inch Sunflower/Mixed Seed Feeders are the worlds cleanest feeders with twist and release removable base technology. 2.75 Inches in diameter Twist and release base ensures easy cleaning, every time Unobstructed interior provides the ideal flow of seed Elegant black color 4 ports with comfort perches 180-degree, two-position rings provide seed access from a variety of angles Attach an Onyx Clever Clean Tray not included to catch spilled seed ingenious tray design allows the tray to remain on the base of the feeder when removing it for cleaning Lifetime Warranty against squirrel damage Made in the U.S.A. This item ships from a separate warehouse and may require extra time for delivery.