The Thompson/Center No. 13 Bore Cleaner is an all-natural, bore solvent that contains no petroleum based additives, and is compatible with T/C's Natural Lube 1000 Plus. The Number 13 solvent will quickly and efficiently remove any trace of residue or fouling from your barrel, without eliminating the seasoning that coats the surface of the bore. Number 13 makes cleanup efficient and easy, so you'll never dread the end-of-the-hunt rifle conditioning. Non-toxic and odorless, Number 13 Cleaner comes in an 8-oz. squeeze bottle, is easy to transport and goes with you anywhere. For the best Bore Cleaner on the market, youll keep coming back to Thompson/Center No. 13.