M-Paper is a writable and erasable flexible film by using a magnetic pen that can replace conventional white board or black board. This environmental friendly M-Paper is suitable for clean rooms and academic places because it does not generate any dusts or harmful substances while using it. It also features self-cleaning functionality that removes written letters after a certain period of time. This innovative film can be effectively applicable to wall papers, office white boards, school black boards, portable writing instruments and more.