Colorbit can be read even such small area as less than 1mm width. Slender area where a tag cannot be attached like the spine of document file or magazines is now applicable with Colorbit. When putting Colorbit on them many inventory of them can be controlled with one shot of camera capturing. This method can be used for not only narrow files and paper goods like envelope but the edge of metal goods, glasses and plastic materials also. The edge of the plastic card and the edge of the keys are good other examples. Like that its applicable applications are wide range. At the hospital Colorbit is already used to control various medicines.