1. [Water-saving chicken breeding machine] Precision ball valve spring switch with sealing screw. When the chicken presses the yellow trigger, the chicken water valve will automatically add water to the plastic cup. Each component is firmly connected to each other, so there is no leakage. The outer diameter of white pipe is 20mm. 2. [Wide use] It is applicable to chickens, pigeons, birds, quails and other pets. Ideal for family or poultry farms. Your chicken is thirsty. I want you to buy these poultry drinking cups to obtain a constant and automatic fresh water supply. 3. [Easy to disassemble and use] Removable poultry drinking fountains are easy to clean and replace. Provide fresh and clean water for your poultry. Chicken potion can be easily installed on PVC pipes or barrels. The cup won't put water until the chicken catches the yellow trigger. 4. [Water saving] When the chicken presses the trigger, the chicken water valve will automatically release water into the plastic cup. The detachable bayonet chicken drinking water dispenser is convenient for cleaning and replacement. Always provide fresh and clean water for poultry. 5. These chicken drinking cups are made of ABS material, which is heat resistant, low temperature resistant, chemical corrosion resistant, and long service life.