Woodlink Coppertop Hummingbird Feeder - Ruby Glass & Brushed Copper Three nectar feeding ports Ruby colored cut glass and has a copper-finish aluminum base and top Feeder has a twist off base making it easy to clean and fill Hand wash only. Dishwasher may discolor the ruby glass Feeder holds 16-ounce of nectar. recommended for use with art line nectar and cherry valley ant guard. nectar and guard sold separately