Automatic watering nipple that keep all the water clean and sanitary, perfect design that chicken learn fast, works for chicks, ducks, quails, hens, even your birds and so on. Go into bucket very easily, threads not necessarily insert into thicker rigid plastic, but thinner flexible plastic containers also work, and easy enough to fix. Made of heavy, durable ABS plastic and stainless steel, very soild and lasting devices, no leaking and no hassle, building a long lasting watering system for your chicken. The watering nipples are convenient for chicken to drink water, at the same time, saving water without leakage; Its also easy for you to install with the drinking water equipment. Size: 32mm in width, 32mm in height, 10mm thread. Pack of 12, please note drill bit not included. Specification: Material: ABS, Metal Color: As Pic Shown Size: 3.2 x 3.2cm Packing List: 12 x Poultry Water Nipples Notes: 1.Due to the different monitor and light effect, the actual color maybe a slight different from the picture color. 2.Due to manual measurements, please allow slight measurement deviations.