{TAIL ~ The engagement portions} are engaged with the latch portions so that the holder arm is kept in {HEAD ~ an expanded state} 
{ TAIL ~ The engagement portions } are engaged with the latch portions so that the holder arm is kept in { HEAD ~ an expanded state }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD