Part No. NC-0920 Description FOR cleaning your hand cleaner roller, remove the protective layer from the top sheet of the wasted pad then exposed the special adhesive treated sheet, Rolling the contaminated roller on the pad. The dust on the roller is promptly transferred to the DCR pad for permanent removal from the environment. Features * Sheets are free of contamination * 50 Sheets Standard Size Two size ( 240mm x 330mm , 240mm X 165mm)