The Perky Pet mason jar hummingbird feeder will not only attract hummingbirds near and far, but it will also add a vintage touch to your yard! The blue color of the glass bottle is reminiscent of vintage blue glass canning jars used in the 1800s. With its 32 fl oz. capacity, this large capacity feeder will keep your hummingbirds coming back time and time again. Simply unscrew the bottle from the base and clean in warm soapy water, it is that easy.