a housing that defines {HEAD ~ an opening} at a first end configured to receive the insertion member, wherein {TAIL ~ an upper inside surface} and a lower inside surface of the housing define a plurality of slots, wherein an interior side surface of the first end of the housing defines at least one ledge, and a rear wall of the housing defines a plurality of openings; and 
a housing that defines { HEAD ~ an opening } at a first end configured to receive the insertion member , wherein { TAIL ~ an upper inside surface } and a lower inside surface of the housing define a plurality of slots , wherein an interior side surface of the first end of the housing defines at least one ledge , and a rear wall of the housing defines a plurality of openings ; and
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH