Otis ripcord.17 caliber rifle FEATURES:-Cleans: .17cal Rifle-Length: 36"-10 inches of aggressive cleaning surface-Caliber specific molded rubberized core for 360 degree cleaning-Heat resistant up to 700 degrees F-NomexA(R) fibers act as both a brush to loosen & a patch to capture fouling particles-Easy-feed design makes for quicker cleaning from Breech-to-MuzzleA(R)-Equipped w/ 5-40 threaded ends to fit Otis limited breech cleaning components Other Features: 10" of cleaning surface, heat resistant (700 degrees), helix shape engages rifling, nomex fibers act as a brush and a patch.