Cleaner Faster Kits, Gauge 12, Patented Phos Bronze Bore Brushes and Patches, by BoreSmith Qty 1 Jag Brush with phos bronze bristles and standard 5/16-27 thread Our dual-purpose bore brush wipes deeper into grooves and reduces rod flex Qty 60 Triangle Patches, 100% cotton flannel and made in USA Premium notched triangular gun-cleaning patches do not get stuck and reduce rod flexing It out performs square and round patches in every way