Bore Tech Square 500/bag Patch, 1 3/8" Highest quality, 100% cotton flannel, double napped, non-fraying, American made patches Superior consistency, maximum solvent Absorption and Cleaning ability Variety of square and round sizes to allow a proper fit All patches are sized to correctly fit the recommended calibers and are able to be used with a variety of Jag types Packed in hang able and re-sealable plastic bags for Convenience