Tetra ValuPro II Airgun One-Piece Rod, 33-Inch Heat-treated stainless steel for maximum strength Dupont tufcoat coated Screw-on delrin bushing and brass collar center rod in barrel to prevent scraping Includes: 5-40 thread with bronze brush, brass Jag, and bore mop A convenient and time saving Cleaning kit Includes Brush, Jag, and Mop Made from Carbon Steel Durable Quality construction