Beautifully styled glass hummingbird feeder comes complete with a black S-hook for easy hanging. Attract hummingbirds to your backyard with the stylish look of this round feeder made with an all-over multi-color marble design. Tube gravity fed hummingbird feeders have been around a long time and are very popular with hummingbirds because they simulate the tube shape of many nectar-bearing flowers. Glass, Metal, Rubber, Plastic.