Abstract: An attachment device for mounting on a flagpole and for releasable attachment to an edge portion of a flag to prevent the flag from entanglement with adjacent structures and also from wrapping around the flagpole. The attachment device includes a pole mounting bracket adapted for receipt on a portion of the flagpole. A control arm is pivotally mounted in a holder disposed in the pole mounting bracket and is capable of extending outwardly therefrom positioned along and parallel to an edge portion of a flag. A removable clip is used for attaching the edge portion of the flag to the control arm, thereby allowing the opposed edge of the flag to flow freely. The control arm is positioned with respect to the pole mounting bracket in a manner which allows it to pivot around the pole in a range of less than 360 degrees, thereby preventing the flag from wrapping around the pole or from becoming entangled in adjacent structure.