The hummers just love our brightly colored hand blown glass hummingbird feeders. Watch them from your window as they buzz around and drink from our one of a kind works of art. We blow our glass hummingbird feeders extra thick, with a stout hook on the top, designed to withstand the elements. You never have to worry about a glass hummingbird feeder made by us! As for the capacity, they hold approximately 24 oz of fluid but are all hand blown. Keep in mind the size can vary slightly from one feeder to the next. Its always best to measure the capacity, filling up with water first, then make a little extra nectar and store in the refrigerator for quick refilling. For more information about caring for your feeder, see additional tabs on this page. Be sure to look at additional color options on the stripes and mixed colors pages.