The KleenBore .40/.41 CAL. & 10MM Handgun BORE BRUSH is a high-quality nylon cleaning brush designed for deep cleaning handguns in .40/.41 caliber and 10mm. This heavy-duty brush is reusable and comes in a black color, making it easy to handle. Made in the United States by the trusted brand KleenBore, this bore brush is perfect for maintaining your firearm and ensuring optimal performance. It also comes with a case for convenient storage and transport.