The reinforcing members are mechanically clamped between {HEAD ~ inner and outer anchor members} that form {TAIL ~ the packer heads} 
The reinforcing members are mechanically clamped between { HEAD ~ inner and outer anchor members } that form { TAIL ~ the packer heads }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL