{HEAD ~ The saddle strap pad} has {TAIL ~ a Shore D hardness} in the range 10 30, preferably about 20 
has
{ HEAD ~ The saddle strap pad } has { TAIL ~ a Shore D hardness } in the range 10 30 , preferably about 20
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH