The lateral end 4 a of the left side wrapping portion 2, when disposed in close proximity to the fold line 35 of the V fold 5, may overlap {HEAD ~ a portion} of {TAIL ~ the V fold} 5, as illustrated in FIGS 16 and 17 
of
The lateral end 4 a of the left side wrapping portion 2 , when disposed in close proximity to the fold line 35 of the V fold 5 , may overlap { HEAD ~ a portion } of { TAIL ~ the V fold } 5 , as illustrated in FIGS 16 and 17
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 OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH