Cleans: .22/.223 cal/5.56mm/5.7mm rifles and pistols. 10'' of aggressive cleaning surface. Caliber specific molded rubberized core for 360 degree cleaning. Heat resistant up to 700F. Nomex fibers act as both a brush to loosen and a patch to capture fouling particles. Easy-feed design. Equipped with 8-32 threaded ends to fit all Otis cleaning components. Hardside carrying case.