Designed for poultry care, this Little Giant 1 Quart Plastic Poultry Waterer Base features heavy duty polyethylene design for reliable hydration of baby chicks, chickens, and small birds. The screw-on design creates a complete gravity-feed watering system when combined with a compatible jar. Made of heavy-duty polystyrene. Works well with the Little Giant 1-Quart Screw-on Feeder which is sold seperately.