The Birchwood Casey Cleaning Patches are specifically designed for .17/.22 caliber airguns with convenient 1-inch square dimensions for effective cleaning.Birchwood Casey BC-41159 Cleaning Patches.17/.22 caliber airgun compatibility1-inch square patch size60-piece pack for extended useProfessional cleaning hardware componentEssential for proper airgun maintenance and cleaning these patches provide reliable performance for keeping your .17 and .22 caliber airguns in optimal condition.