The elastic tether is deformable for providing a first length during {HEAD ~ the plug cap} engaging {TAIL ~ the plug} 
engaging
The elastic tether is deformable for providing a first length during { HEAD ~ the plug cap } engaging { TAIL ~ the plug }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL