Do a little research and you will quickly see it is widely accepted that the best feathers for dusting purposes are “ostrich” feathers. The electrostatic nature, as well as the natural oils in the ostrich feather, attracts and holds fine dust rather than simply knocking the dust in the air and redistributing it somewhere else. Any professional house cleaner that has experience with them will tell you so. The overall length of the duster is approximately 28 inches. The length of the ostrich feathers are about 14 inche