Each flap is moved about the score line for insertion through the elongated opening such that when the flap is inserted beyond the free end of the flange, {TAIL ~ the flap} is biased way from {HEAD ~ the panel} to connect the panel to the channel 
Each flap is moved about the score line for insertion through the elongated opening such that when the flap is inserted beyond the free end of the flange , { TAIL ~ the flap } is biased way from { HEAD ~ the panel } to connect the panel to the channel
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 TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH