In embodiments of the present invention including a pressure activation assembly, the outer housing is formed by a pair of covers having {HEAD ~ a degree} of flexibility and {TAIL ~ elasticity} 
of
In embodiments of the present invention including a pressure activation assembly , the outer housing is formed by a pair of covers having { HEAD ~ a degree } of flexibility and { TAIL ~ elasticity }
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 OTH OTH TAIL TAIL TAIL TAIL TAIL