{HEAD ~ The adjustments} are secured by {TAIL ~ fasteners} and by mechanical interlocking of the parts of the holster 
are secured by
{ HEAD ~ The adjustments } are secured by { TAIL ~ fasteners } and by mechanical interlocking of the parts of the holster
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH