Water Saving:Precision ball valve spring switch with seal screw, when chickens peck the yellow trigger, the chicken waterer valve will automatically release water into the plastic cup. Each part is tightly connected so that no leakage occurs. High Quality:Adopt quality ABS material, safe and non-toxic, heat resistance, low temperature resistance, chemical resistance, good toughness and anti-aging, designed with the soft and smooth surface, will not scratch your pet's mouth. Convenient Use:Immediately pour water into the cup when the spring spring is hit. No need to clean or refill frequently and are not prone to contamination, saving you time and effort. Easy to Install:Removable bayonet type water bowl for easy cleaning and replacement, convenient and practical. Combinations of fittings can be used to extend an existing watering system, or can be attached to a bucket or barrel to create a gravity-fed waterer. Wide application: Suitable for chickens, pigeons, birds, quail and other pets. Ideal tool for home or chicken farms. Your chickens are thirsty and want you to buy these poultry cups so that they have a constant and automatic supply of fresh water. Size: about 8 cm in length, 3.5 * 4.8 cm in diameter Delivery quantity: 6 pieces