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