20PCS ULTILITY TUBE CLEANING BRUSH KIT Contents: 1 pc 6'' Extension Shaft 1 pc Ball Bearing Quick Release Rubberized Driver 6 pc Nylon Brushes 6 ps Brass Brushes 6 pc Stainless Steel Wire Brushes Brush Size:9/11/13/15/17/19mm Cleans Barrel Size(cal.):.325, .38. .380, .357, .35, .44,.50, 57, .68 1 pc Nylon Carrying Case Bag