- Automatic refill as chickens drink: The cup fills automatically based on the water level in the bowl, so you do not need to refill several times each day. - Leak-free and mess-minimizing design: No leaks and no water overflow. The cups are fairly large and deep, 2.2 inches in diameter, allowing hens to submerge their beaks without creating a major mess. - 30 pack of durable cups: Includes 30 high quality, sturdy and durable chicken water cups. Easy to clean and maintain. - Easy installation and versatile connections: Installation only requires a 3/8 inch drill bit to make a hole in any container, then fasten with a wing nut. Can be connected with a bucket and pipe for convenient, scalable setup. - Function and compatibility: Designed for automatic poultry drinking, compatible with common containers and gravity-fed systems. Suitable for use in coops, barns, or other poultry setups. - Use scenarios: - Backyard coop: Connect to a 5-gallon bucket to keep water topped off as birds drink, reducing daily refills. - Farm or barn systems: Integrate with a central reservoir (bucket or barrel) and pipe to supply multiple cups across the setup. - Portable or temporary runs: Move cups between containers or use with totes for flexible, on-the-go watering.