Treso black powder muzzleoading fiberglass ramrod. These fiberglass ramrods are made from a smooth fiberglass rod and TRESO brass tips secured with epoxy and/or a 1/16" cross pin. Rods are 48" long and are available with tips having either a 8-32 or 10-32 thread. The 3/8" rod is dark brown in color and the 5/16" is black. The fiberglass ramrod is truly the only unbreakable ramrod available. With its inherent stiffness, this rod is ideal for the hunting rifle. It will not swell like wood under wet conditions. These are not as flexible as the Delrin ramrods.