Set of 4 - Plastic Poster Hanger Kit For 22-Inch Wide Signs Includes Suction Cups For Glass Mounting, Snap Open Design, Adjustable Plastic Eyelets Total of 4 kits; Top rail attaches to suction cups for mounting on glass. Plastic construction is economical and supports heavier banners. Bottom rail ensures that graphic stays flat and taut. Snap open rails make it easy to change graphics. Displays2go SKU#: BRKSC22