Windows cut into the insulative and adhesive layers on {HEAD ~ either the top} or bottom of the tape permit electrical connection to {TAIL ~ the metallic conductive layer} 
Windows cut into the insulative and adhesive layers on { HEAD ~ either the top } or bottom of the tape permit electrical connection to { TAIL ~ the metallic conductive layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL