The position of the tray is maintained by {HEAD ~ a fastener} which extends through {TAIL ~ the clip member} into a friction fit relationship with the shelf 
extends through
The position of the tray is maintained by { HEAD ~ a fastener } which extends through { TAIL ~ the clip member } into a friction fit relationship with the shelf
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH