The panel includes opposed ends and {HEAD ~ a score line} formed therein adjacent each of {TAIL ~ the opposed ends} to define opposed flaps which are moved about respective score lines in order to pass through the elongated opening to operatively connect the panel to the first and second channels 
The panel includes opposed ends and { HEAD ~ a score line } formed therein adjacent each of { TAIL ~ the opposed ends } to define opposed flaps which are moved about respective score lines in order to pass through the elongated opening to operatively connect the panel to the first and second channels
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH