5 Pack Chicken Quail Cup Water Gravity Fed Self Watering 5 Chicken Cup Waterers with 3/8" Barb Recommended 2 to 3 birds per each cup Great for Chickens, Chicks, Ducks, Turkeys, Quail and game birds. Use with low pressure systems only Every time they drink from the cup, the low amount of pressure allows the right level of water to come into the cup