My (Best Ever Quail Feeder) is made out of high grade PVC. The one listed on BYC is 23.5 inches long and 3inches in Diameter. I also build 14 inch feeders with the 3in diameter also Button Quail feeders. These can be ordered by e-mailing me. If you are tired of your birds wasting your feed these feeders will work for you. These feeders can be used for feeding Quail, Pheasant's, Chukar and chickens.