Made from stainless steel and DuPont TufCoat coated for maximum barrel protection. ProSmith Rifle Rods effectively clean all firearms and are available in 29" and 36" lengths for .17 (5/32"), .22 (3/16") and .30 (1/4") caliber barrels, and a 44" length for .22 and .30 caliber barrels. This package includes a screw-on Delrin bushing & brass collar center rod in barrel to prevent scraping and a exclusive spinning Delrin handle.