The body member can be removed by rotating {HEAD ~ the body member} and withdrawing it by a pulling action whereby {TAIL ~ the engageable member} slides in and out of the second channel 
The body member can be removed by rotating { HEAD ~ the body member } and withdrawing it by a pulling action whereby { TAIL ~ the engageable member } slides in and out of the second channel
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH