Duncraft Satellite is designed to attract small songbirds like chickadees, nuthatches, titmice and finches. One at a time a bird lands, picks out a fat sunflower seed and then dashes off. Fun to watch, as birds return again and again and set the Satellite spinning! Easy to fill. Designed for sunflower seed in shell only. Holds 1/2 lb. 6 inch diameter, complete with 12 inch hanging chain. Made in the USA.