Keep your pistol in great condition with the Caliber cleaning kit. The molded black nylon carrying case includes all the tools needed for a thorough cleaning. Store your favorite gun cleaning solvent in the back of the case behind the divider. (4) bronze bore brushes are provided for various calibers and packed securely in a plastic tube to protect the foam cut out and bristles from getting damaged. Use the nylon brush and cleaning pick to get into smaller areas that the bronze brush can't reach. Slotted patch holders and white cleaning patches are provided to run through the barrel to determine if it passes your inspection.