{HEAD ~ The offset} serves to provide {TAIL ~ clearance} between the zipper pull and the body of the Self Aligning Zipper so that the zipper pull does not interfere with the operation of the Self Aligning Zipper 
serves to provide
{ HEAD ~ The offset } serves to provide { TAIL ~ clearance } between the zipper pull and the body of the Self Aligning Zipper so that the zipper pull does not interfere with the operation of the Self Aligning Zipper
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL 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