First Nature’s 16 oz. Hummingbird Feeder’s red base really attracts the birds. The perch provides the perfect position for birds to comfortably feed at any of the ten ports. Bee / Wasp protection from entering the feeder. The wide-mouth reservoir is easy to fill and easy to clean. The patented two-part base twists apart for thorough cleaning. All parts may be washed in warm soapy water. (Do not put any parts of this feeder in a dishwasher.) We recommend you use First Nature’s Hummingbird Nectar Concentrate which you can easily mix right in the reservoir.