Do-it-Yourself Frameless Felt Board is part of a customizable board system that lets you mix & match your board surfaces to suit your needs. Four brackets on the back let you hook it into the channels of the Do-it-Yourself Board Aluminum Frame (not included) that you mount to your wall with screws. The frame stays on the wall, but lets you replace a glass & / or cork panel with this 12mm thick felt board made with medium-density fiberboard. The gray felt lets you tack messages & reminders while offering a professional backdrop for your office or conference room.