Quartet Cork Tiles, Cork Board, 12" x 12", Corkboard, Wall Bulletin Boards, Natural, 4 Pack (102) Each frameless tile is 12-Inch x 12-Inch, 4 Pack; Natural cork is self-healing for longer lasting use Adhesive tape included for fast and easy hanging in any space; For light use in low traffic work environments 1/4-Inch thick cork tiles are modular to create a customized bulletin board that holds push pins tight