In this embodiment, {HEAD ~ the container} 12 is turned around {TAIL ~ the axis} thereof at an interval of 90° so that the recess 26 can be directed selectively in any one of four dispositions, namely back, front, left and right directions 
In this embodiment , { HEAD ~ the container } 12 is turned around { TAIL ~ the axis } thereof at an interval of 90 ° so that the recess 26 can be directed selectively in any one of four dispositions , namely back , front , left and right directions
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH