This is a Pennington 28 oz. Glass Hummingbird Feeder. It has an 28 fluid ounce nectar capacity. The feeder features eight bee-resistant feeding ports and seals. It has a wide-mouth glass bottle for easy filling and cleaning. A built-in ant moat helps keep ants away from the nectar. The feeder disassembles completely for easy cleaning and is dishwasher safe.