The More Birds? Ruby Hummingbird Feeder features a glass nectar bottle and a colorful red top and base with 5 integrated perch feeding stations. The built-in ant moat stops ants right in their tracks, keeping precious nectar fresh for hungry hummingbirds. With a 10 oz. nectar capacity, the Ruby provides plenty of nectar to keep hummingbirds happy and coming back for more! The wide bottle opening and detachable flat base make filling easy and cleaning a breeze. For best results, use More Birds Premium Nectar, which simulates natural nectar found in flowers.