Bends easily to brush hard to reach areas of the chimney. Finished with 3/8" NSPM or 1/4" NPT heavy duty fittings. Size: 6' Flexible fiberglass rod Heavy duty Bends easily to brush hard to reach areas of the chimney For use with flue brushes, more rigid than twisted wire rod Finished with 3/8" NSPM or 1/4" NPT heavy du