Perfect for baby chicks or small birds. Screw-on replacement jar fits the Little Giant Quail 1-Quart Screw-On Plastic Waterer Base (Item No. 51554, sold separately) or the Poultry 1quart screw on Poultry base (Item #51565) This 1-Quart Plastic Feeder Jar is molded from durable transparent polyethylene so the content level is always visible. 3.5 diameter by 7.25 high.