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