The degree of parallel disposition of the straps 10,10 depends upon the distance between {HEAD ~ the outer S hooks} 26 employed between {TAIL ~ the two straps} 10,10 
employed between
The degree of parallel disposition of the straps 10,10 depends upon the distance between { HEAD ~ the outer S hooks } 26 employed between { TAIL ~ the two straps } 10,10
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH