KleenBore 100% Cotton Gun Cleaning Patches ✔NEW ✔Low Price ✔U.S. Shipping ✔Authorized Dealer KleenBore 100% cotton flannel provides maximum absorbency and bore protection. These patches are precision cut to ensure the proper fit and maximum cleaning performance when used with KleenBore jags or patch holders (sold separately). Six sizes to choose from (use drop-down menu to select):7/8″ Square — Small Bore1-1/4″ Square — .22/.270 Caliber1-3/4″ Square — .28/.35 Caliber2-1/4″ Square — .38/.45 Caliber & 410/20 Gauge3″ Square — 12/16 Gauge4″ Square — big bore shotgun or grenade/tear gas launchers