These are great for feed or water. Holds enough water for ~4 days in hot weather for one bird or longer in cool weather. Although not recommended for use as a water cup in colder climates with many below freezing days, they are now made with more flexible plastic than they were in 2020 and before, so won't break as quickly. Hangs on wire or other thin material and is 6.25" diameter x 5" deep and holds 64 ounces of water. Now made in USA.