Features: Adopts quality ABS material, good toughness, anti-aging and durable. The stainless steel ball nipple is healthy, corrosion resistant and anti-rust. This drinker automatically feed your chicken, saving water without leakage. Easy to install, detachable and convenient to clean. Very practical replacements for the old or damage ones. Specification: Condition: 100% Brand New Material: Stainless Steel, ABS Color: Shown as Picture for Pipe Diameter: 20mm/0.79in, 25mm/0.98in(optional) Weight: approx. 282g/9.95oz Package List: 20 * Chicken Feeder Nipples Note: 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.