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