RamRodz 0.40/10mm Caliber Gun Cleaning Swabs (100 Quantity) Industrial-grade, low-lint cotton 8" bamboo handle easily bends without breaking Breech cleaners for slides, receivers, chambers, magazine housings, breeches and more Disposable and biodegradable Five sizes: 22, 38/9mm, 40, 45 and 50 caliber hand guns (each size available separately)