Features and Benefits:�Caliber-specific for .38/.357/.380/pmm handguns�Expands deep into rifling grooves�Industrial-grade, low-lint cotton heads�Strong and flexible bamboo handles�No drip, mess or splatter�Disposable and biodegradableRamRodz® Barrel and Breech Cleaners are a new line of gun cleaning swabs that eliminate the need for cotton patches. They provide far superior gun cleaning performance in a fraction of the time without the hassle and mess. All RamRodz® models are ideal for cleaning barrels, receivers, slides, chambers, magazine housings, breeches and more.