In this invention, a basestrip is at first fixed to wall and wall board is then fixed to the base strip by insertion. Its features and usage are as follows: the socket on base strip is matched with the plug slot on wall board; The wall board can be arbitrarily detached for cleaning, exchanging and regulating board surface that is divided into two sorts: one having and another not having acoustical holes for absorption and isolation of sound; Plastic wall paper, wall picture and foam pattern may be pasted on the board surface; And something such as decoration support in different shapes, clothes hanger, flower vase, simple book-shelf and multifunctional box can be fixed to it by pressing or binding. |