Then, {TAIL ~ the mask} is fixed in {HEAD ~ a rolled up state}, thereby forming the roller 40 
Then , { TAIL ~ the mask } is fixed in { HEAD ~ a rolled up state } , thereby forming the roller 40
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH