{TAIL ~ The holding members} are separated or isolated from the slider, to assure smooth sliding movement of {HEAD ~ the slider} 
{ TAIL ~ The holding members } are separated or isolated from the slider , to assure smooth sliding movement of { HEAD ~ the slider }
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