One of Aspects most popular feeders, the Big Tube, is New and Improved! Featuring a Quick-Clean Base that easily removes, keeping feeders clean for your birds has never been easier. These feeders have an exciting Cardinal Perch that is orthogonally designed with a wider feeding opening that allows cardinals to feed comfortably. Constructed of a polycarbonate tube and die cast top base and feed ports, these feeders are backed with Aspects Lifetime Guarantee to ensure years of enjoyment.