The carpet strip is secured by a pair of {HEAD ~ labyrinth type clamps} that can be loosened and tightened without {TAIL ~ use} of additional tools 
The carpet strip is secured by a pair of { HEAD ~ labyrinth type clamps } that can be loosened and tightened without { TAIL ~ use } of additional tools
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH