Gunsmith & Armorer 38pc Cleaning Kit Rifle Pistol Handgun Gun Tube Chamber Barrel Care Steel / Nylon / Brass Brush Set + Field Travel Pack Case + Hex Shaft Extension 38pc Kit Includes: - 1pc Ball Bearing Quick Release Rubberized Driver - 1pc 6 Extension Shaft - 12pc Brass Brushes - 12pc Nylon Brushes - 12pc Stainless Steel Brushes + Molded Organized Travel Case Brush Sizes: 8, 9, 10, 11, 12 13, 14, 15, 16, 17, 18, 19mm Cleans Barrel Size(cal.): .32, .325, .38, .380, .357, .35, .38, .40, .44, .475, .480, .50, .57, .68 Sizes Written Inside Case. Blow Mold Pastic Case.