Features 1、Automatic Water Outlet Design: Chicken waterers with automatic water outlet design, can automatically appear according to the amount of water in the bowl, water full of self stop, easy to use. 2、Simple Installation: Chicken water cups are easy to install, with 9mm/0.35in holes punched in the bucket, just install the water bowl and screw on the screw to fix it. 3、Easy to Clean: Chicken waterers can be easily connected to buckets, quadrate pipes and other water lines, easy to clean. 4、Widely Used: Poultry watering feeder cups are suitable for chickens, ducks, pigeons and other poultry. 5、Safe Material: Chicken waterers are made of premium plastic, safe, non toxic, odorless and durable. Specifications: Item Type: Water Cups Material: Plastic Size: Bowl Diameter: Approx. 6cm/2.4in Bowl Depth: Approx. 3cm/1.2in Aperture: Approx. 9 mm/0.35in Size 1: Approx. 3cm/1.2in Size 2: Approx. 1.9 cm/0.7in Size 3: Approx. 2.8 cm/1.1in Use: Poultry Automatic Drinking Bowl Suitable for chickens, ducks, pigeons and other poultry Package List 10 x Water Cups 10 x Nuts