Fits .357-.380 Cal., .38 Cal., 9mm, .40 Cal., 10mm, .41 Cal., .44 Cal., .45 Cal. Pistol; 410-20 Gauge Shotgun; 2 1/4" Square Patches; 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; Superior Weave Technology (SWT) - Exclusive thread count with a weave designed to catch/trap more fouling; Packaged in reusable zipper top bags; 500 Count / Pack; Made in USA