Features: 1. Our poultry drinking bowl automatically discharges water according to the amount of water in the bowl, and it will maintain a constant water state, so farmers don't have to worry about the problem of water interruption for poultry. 2. Our drinking cup keeps the water level where it needs to be, so nothing spills out of the cup. Reduce your workload, save your time and provide fresh water for chickens all the time. 3. Each cup is large enough to water, and are safe for chicks to use. It is suitable for all types of domestic birds like duck, chicken, chick etc. 4. The cups fill by themselves and are always full. Help you build best and cleanest watering solution for poultry watering. 5. No need to train the chickens. Since its gravity filled, no gunk goes back inside the waterer and the inside stays clean. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Size: 11*7*7cm includes: Choice 1: 6 pcs x Automatic Chicken Waterer Cups Choice 2: 12 pcs x Automatic Chicken Waterer Cups Choice 3: 18 pcs x Automatic Chicken Waterer Cups