The Perky-Pet Diamond Wine Top-Fill Glass Hummingbird Feeder is a favorite of birders and hummingbirds alike. The wide-mouth opening and top-fill design ensure that filling the hummingbird feeder is always easy and mess-free! Simply remove the lid and pour 24 oz of nectar into the wide-mouth opening to get your feeder up and running-there's no need to invert the bottle! The feeder is also easy to clean because it can be completely disassembled, ensuring that you can access every nook and cranny. While you enjoy time saved from filling and cleaning, your hummingbirds won't be able to resist the feeder's lifelike flower-shaped feeding ports.