4 Pack, 12" x 12", Dark Cork Tile, Durable 1' x 1' Self Stick, Dark Cork Panels Combine To Create A Customized Bulletin Board That Secures Documents With Push Pins, Delivers Effective Performance When Communication Is Needed In Low Use Work Environments, 3/8'' Thick Self-Healing Surface Will Not Show Pin Holes & Absorbs Noise In Loud Areas, Easily Install, Fits Any Space.