Nylon-coated cleaning rods do a great job, and won't mar your gun's finish or the barrel. One-piece spring-steel rods have a ball-bearing handle that is both comfortable and easy to use.Sizes: .20 cal. (Rod length: 38") .17 cal. (Rod length: 36") .22-.26 cal. (Rod length: 36") .27-.35 cal. (Rod length: 36") .35-.50 cal. (Rod length: 36")