Enjoy watching wild birds up close right at your window. This feeder makes a wonderful gift for a child -- and it fits on a small windowpane in older windows….Chickadees, nuthatches, titmice and colorful finches will find their way here. The suction cups on this windowpane feeder are first rate -- they adhere through extremes of temperature. This feeder lifts off its suction cup for easy refilling and cleaning 3-1/2 x 3-1/2". Manufactured by Duncraft.