Homestead 16 oz Nectar Gem Hummingbird Feeder (Papaya) - 4251 Holds up to 16 oz of nectar Exclusive iridescent gem color attracts more hummingbirds Only anaerobic feeder in the market which destroys mold Patented valve prevents leakage regardless of changes in air temperature or atmospheric pressure Unique patented airless flexible bag can expand and contract