Fits.357-.380 Cal.-.38 Cal.-9mm-.40 Cal.-10mm-.41 Cal.-.44 Cal.-.45 Cal. Pistol410-20 Gauge Shotgun21/4" Square 100 Count PatchesAmerican Cotton & American Design come together to form the best patch in the world! High thread count with tightly woven material along with our double napped on both sides creates a superior cleaning patch that have become known worldwide for their unparalleled cleaning ability. Often imitated, never duplicated!! The fact is well-known that nothing surpasses 100% COTTON FLANNEL FABRIC for purposes of absorbing foreign matter and residue, and in turn carry it through the BORE with the LEAST amount of abrasive contact to the barrel's rifling. American Cotton & American Design come together to form the best patch in the world! High thread count with tightly woven material along with our double napped on both sides creates a superior cleaning patch that have become known worldwide for their unparalleled cleaning ability.