Metal partition hangers fit snugly over cubicle walls to properly secure Matrix whiteboards or bulletin boards in a personal workspace. Attach boards over cubicle partitions; fits cube walls frame 1.5" to 2.5" thick. Metal hangers provide secure hold for boards Compatible for use with the following aluminum frame whiteboards and bulletin boards: Quartet Matrix whiteboards, InView whiteboards, Standard and Classic series porcelain and melamine whiteboards, Educational porcelain whiteboards, Prestige Plus porcelain whiteboards, Prestige Total Erase whiteboards, Prestige Euro Total Erase whiteboards, Quartet Matrix fabric bulletin boards, Standard and Classic series cork bulletin boards, Prestige Plus magnetic fabric bulletin boards, Prestige embossed foam bulletin boards, and Prestige fabric bulletin boards. Also compatible with aluminum frame Prestige combination boards. Black hangers come in a set of two.