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