Efficiently clean fouling from your muzzleloader! The Thompson/Center Presaturated Cleaning Patches are 100% cotton patches saturated with the No. 13 Bore Cleaner from Thompson/Center. Change the position of the patch on the jag to accommodate calibers from.45 to.58. Patch size: 2.5 diameter. 100-pack. Manufacturer model #: 7143/31007143. 2.5-diameter cotton cleaning patches Pre-soaked with No. 13 Bore Cleaner Fits calibers from.45 to.58.