& Nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; on demand using & nbsp; & nbsp; How many people use & nbsp; & nbsp; how to use & nbsp; & nbsp; size ratio then space & nbsp; & nbsp; put much for & nbsp; & nbsp; Second, consider the color with & nbsp; & nbsp; and then secondly consider the material needs of & nbsp; & nbsp; & nbsp; & nbsp ; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;