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