This baby chick waterer screws onto a Little Giant 1-Quart Plastic Screw-On Feeder/Waterer Jar (Item No. 51569, sold separately) or a standard Mason jar to make a gravity-feed waterer. Made of heavy-gauge galvanized steel for years of service. Rounded, embossed edges help reduce chafing on chicks' necks and heads. 5.5 inch diameter by 1.25 inch high.