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