Perfect for baby chicks or small birds. Screw-on replacement jar fits the Little Giant 1-Quart Screw-On Plastic Waterer Base; 1-Quart Quail Waterer Base; Metal Chick Feeder Base; and Metal Chick Waterer Base. Jar is molded from durable transparent polyethylene so the content level is always visible. 3.5 inch diameter by 7.25 inch high.