Polycarbonate cover has a raised perch ring for an unobstructed view and removes easily for filling and cleaning. The 3 raised feed ports divert rain. Built-in ant moat blocks crawling insects, and the ant moat has overflow channels so that rain doesn't dilute the nectar. Hang from included brass rod or post mount on 5/8" wooden dowel (dowel not included). Nectar-level indicator on bowl. Dishwasher safe. Capacity: 8 oz. Dimensions: 7" diameter x 7-1/2" H. Made by Aspects.