3/4" Square, .17 CAL.-.22 CAL. Rimfire 100% Cotton Flannell Gun Cleaning Patches 500 Count American Grown finest quality cotton, milled in America to Pro-Shot Specifications Consistent thickness, shape, and white in color Designed to handle all solvent types, even harsh chemicals SWT- Superior Weave Technology- Exclusive thread count with a weave designed to catch/trap more fouling Finished on both sides for extreme absorbency Packaged in reusable zipper top bags Made in USA