The Perky-Pet Window Mounted 14 oz Glass Hummingbird Feeder is a glass window hummingbird feeder with two sculpted-flower feeding stations with bee guard. Slide-action bracket attaches quickly and securely to window and allows for easy bottle removal for filling and cleaning. Designed to bring hummingbirds right to a window for close observation, this feeder mounts quickly on glass with two suction cups and remains secure. It's made of tempered glass to resist scratching, has a capacity of 14 fl oz, and slides on and off the mounting bracket for simple, easy refilling. There are two plastic flower-blossom feeding stations with bee guards and perches.