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