Bore Tech's Proof-Positive Bore Stix are quite simply the finest coated cleaning rods available, Featuring industry renowned ball bearing handles combined with cutting-edge Proof-Positive materials, these rods set the bar in cleaning rod technology. The free-floating, dual bearing handle design allows for effortless motion and precise following of the barrel's rifling. Translation: Proof-Positive Bore Stix provide effective cleaning and eliminate the frustrating issue of having jags and brushes unscrew from the end of the rod. In addition, the color-coded handles offer a comfortable, non-slip rubber grip that prevents damage to the rifle stock and eliminates the guesswork in determining what rod to use for what caliber. All Proof-Positive Bore Stix feature a barrel safe, non-brass, Proof-Positive tip that eliminates the irritating false indication of copper fouling that is found with traditional brass tipped rods when using copper removing cleaners. The replaceable, female Proof-Positive tip also eliminates the need for additional adapters when changing between jags and brushes. Each Proof-Positive tip is specially machined to provide a completely smooth, edge-free transition between the rod and our Proof-Positive Jags. This removes all possibility of damage to the firearm's crown while pulling the rod back through the bore. Utilizing a caliber specific, enhanced, high strength steel core, the Proof-Positive Bore Stix have unsurpassed rigidity that minimizes bow and flex. The steel core is coated with a proprietary, low friction coating that is extremely durable and chemically resistant providing years of dependable service. Proof-Positive Bore Stix also add a twist to gun cleaning and feature an industry exclusive barrel twist rate identification system. The simple index dot system allows shooters to easily determine a firearm's barrel twist rate.