{HEAD ~ A tape cassette} 1, wherein {TAIL ~ said weighting elements} are made of a single metal material 
wherein
{ HEAD ~ A tape cassette } 1 , wherein { TAIL ~ said weighting elements } are made of a single metal material
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH