{TAIL ~ The cover} is affixed to the base such that {HEAD ~ the fold} between each flap portion and the cover is arched upwardly away from the base to create a downward biasing force on each flap portion 
{ TAIL ~ The cover } is affixed to the base such that { HEAD ~ the fold } between each flap portion and the cover is arched upwardly away from the base to create a downward biasing force on each flap portion
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH