Premium Material: These poultry nipples are made of hard plastic, which is stronger and more durable, won't damage even overexposure to sunlight. Longer metal parts |:The long water lever is made of 304 stainless steel. it is a perfect improvement which can help your chicken learn to drink water from chicken nipple quickly. Keep the water clean: It can always provide fresh water to the herd, keeping the water free of dirt and urine. More ventilation: you don't have to worry about drinking water anymore. This product is a quick and easy way to keep poultry watered, which is very easy to install on the water bucket. Wide Applications: These high quality poultry nipples are suitable for chickens, ducks and other poultry.