The unit also uses a unique target backing material that does not require targets to be made of {HEAD ~ rolls} of {TAIL ~ coated or heavy material stock} 
of
The unit also uses a unique target backing material that does not require targets to be made of { HEAD ~ rolls } of { TAIL ~ coated or heavy material stock }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL