Features:Adopts quality ABS material, good toughness, anti-aging and durable.The stainless steel ball nipple is healthy, smooth and not easy to block.Automatically feed your chicken, saving water without leakage.Can be easily installed, firm and stable.Practical feeder nipple, suitable for chicken, ducks, quail and other poultry.Specification:Condition: 100% Brand NewMaterial: Stainless Steel, ABSMain Color: Yellowfor Pipe Diameter: 20mm/0.79in, 25mm/0.98in(optional)Length: approx. 6cm/2.36inWeight: approx. 233g~255g/8.22oz~8.99ozPackage List:20 * Chicken Feeder NipplesNote:1. Please allow 1-3cm error due to manual measurement, thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos displayed in photos may be showing slightly different from the real object, please take the real one as standard.