Kleenbore Gun Care ClayMate Cleaning Tool (20 Gauge) For use with these calibers: Shotguns: 20 Gauge The ClayMate is a compact two-section shotgun cleaning tool Features soft fibers that effectively pick up unburned powder, which is lifted by a screw-on phosphor bronze brush, providing unbelievably quick and effective cleaning Includes a screw-on bore mop for applying a light coating of a favorite KleenBore solvent or lubricant Breaks down for easy storage in a gun case or range bag