In one embodiment the grip portion of the tack is {TAIL ~ a cross bar}, at the proximal end of the shaft, which fits into an open sided slot at the forward end of {HEAD ~ the applicator} 
In one embodiment the grip portion of the tack is { TAIL ~ a cross bar } , at the proximal end of the shaft , which fits into an open sided slot at the forward end of { HEAD ~ the applicator }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL 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 HEAD HEAD HEAD HEAD HEAD HEAD