At the completion of the wrapping cycle, the lateral end of {TAIL ~ at least one wrapping portion} when released retains an adhesive layer that seals {HEAD ~ the item} being wrapped 
At the completion of the wrapping cycle , the lateral end of { TAIL ~ at least one wrapping portion } when released retains an adhesive layer that seals { HEAD ~ the item } being wrapped
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH