The covering material extends from a dispense roll at {HEAD ~ one end} of the assembly to {TAIL ~ a take up roll} at an opposite end of the assembly 
The covering material extends from a dispense roll at { HEAD ~ one end } of the assembly to { TAIL ~ a take up roll } at an opposite end of the assembly
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH