Perky-Pet Pinch-Waist Glass Hummingbird Feeder features 4 feeding ports, a full-circle perch and holds 16 ounces of nectar. Use the included hanger to hang it from a branch or hook. The popular pinch waist model nectar feeders have long been a favorite of customers worldwide. For best results, use Perky-Pet Instant high energy nectar. This specially blended nectar is easy to use, requires no boiling and stays fresh longer. The clear, shatter-proof glass reservoir makes it easy to monitor nectar levels and unscrews easily from the feeder base for quick cleaning and filling. The feeder may be cleaned with the Perky-Pet Cleaning Mop. Remember to clean your feeder at least twice a week, more often in very warm climates or seasons.