Medium blue repurposed vintage glass bowl bird feeder. The larger size bowl helps keep the rain out of the seeds. Easy to clean and refill. Just unscrew the bottom galvanized steel feeder from the Mason jar. Keeping a bird feeder clean is very important to prevent birds getting sick from moldy seeds. It has no no bottom plate or upturned bowl that would catch dirt, grime, or water which would breed mosquitos. Eye screw hole on top is sealed with silicone so rain won't leak into the seeds.