Decorate and insulate with these dark, chunky cork wall and ceiling tiles. These tiles can also be used as a tack board. These multi-functional, solid cork tiles are naturally dark (nearly black) in color. Excellent insulators against temperatures, sounds, and vibrations. Make your own bulletin board with cork squares or use in an office, classroom, or any room to pin up your work and help keep you organized. Also great on the ceiling. Dimensions per tile: 12” x 12” x 3/8” thick (305 mm x 305 mm x 9.5 mm thick).