When it comes to preventive maintence proper cleaning is key to keeping any black powder firearm looking good and shooting well.CVA Barrel Blaster is a series of solvents and rust preventatives specially formulated for black powder firearms. These patches are pre-saturated with rust preventative to make cleaning easy.After cleaning thoroughly with cleaning solvent and drying the bore with a patch run a couple of these patches through the bore to keep it shiny and rust-free.CVA Barrel Blaster is also perfect for preventing rust on exterior metal surfaces of your firearm!FeaturesProtects: Pre-saturated with rust preventative to season and protect your black powder firearmsType: BB Rust Prevent PatchesSize: 100 QtyQuantity: 100 Cleaning PatchesBristle Type: CottonMaterial: CottonContainer: Convenient re-sealable jar