This yarn has {HEAD ~ a 50 gage rubber core} with {TAIL ~ the inner and outer coverings} 36, 38 respectively comprising 70 denier polyester 
with
This yarn has { HEAD ~ a 50 gage rubber core } with { TAIL ~ the inner and outer coverings } 36 , 38 respectively comprising 70 denier polyester
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH