{HEAD ~ The adjusting device} 1 wherein said first engaging portion is a rod and {TAIL ~ the second engaging portion} is two hook elements 
{ HEAD ~ The adjusting device } 1 wherein said first engaging portion is a rod and { TAIL ~ the second engaging portion } is two hook elements
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH