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