Twenty (20) Push in Water Nipple Drinker Perfect for Chickens Ducks Geese Waterfowl Turkeys Comes with Push Rubber Grommet Ultra Flow Push-in Style Nipple Easy Installation in any Thin-walled Container 360-Degree Stainless Steel Nipple Head works from any angle Works under Low Pressure only (5 PSI or less) & must be Regulated down to such