Screw-on Red base combines with the Little Giant 1-Quart Screw-On Feeder/Waterer Jar to make a gravity-feed waterer for baby chicks and small birds. 6 inch diameter by 1.5 inch high. Made of heavy-duty polystyrene Screw-on waterer base RedFits the Little Giant 1-quart screw-on feeder/waterer jar (sold separately)Combines with waterer jar to make a gravity-feed watererRed colorRed color