Deluxe 17 inch Thistle/Nyjer Seed Feeder features patented Twist & Clean technology that allows you to twist & remove ALL parts in seconds with no need for tools - ALL parts are dishwasher safe! Patented Even Feed baffles hold seed at EVERY level and divert seed to the feeding ports. The Easy Fill-Less Spill 6-sided tubes are up to 50% wider than other tubes on the market, make refilling faster and easier, allow for more ports (6), and allow you to view up to 50% more birds! Feeding holes above AND below the perches birds can feed right-side up and upside down! Made of stay-clear polycarbonate and rust-free aluminum parts with durable bronze or pewter powder-coat finishes. Nature s Way Bird Products exclusive!