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. Please View My BYC Page for pictures. THANKS