Brownells 10mm/.40 Cal 8.23" Handgun Cleaning Brush, Pack of 12

The cost-effective brush eliminates the need for a separate cleaning rod. Its nylon bristles are highly effective when used with bore cleaners that aggressively target copper fouling, as well as with traditional bronze brushes. The brass handles are designed to prevent scratching of the bore. It is recommended to include one with every new or used firearm purchase. Nylon bristles with a length of 0.014 inches (0.355mm) and a diameter of 0.22 inches (3.10 cm)