{HEAD ~ Each base member} is a one piece molded plastic structure having sidewalls, endwalls, a central portion forming a recessed area and {TAIL ~ four leg receiving sockets} 
{ HEAD ~ Each base member } is a one piece molded plastic structure having sidewalls , endwalls , a central portion forming a recessed area and { TAIL ~ four leg receiving sockets }
HEAD 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL