1.Suitable for drinking straw, airbrushe, spray gun, tattoo, small nozzles and etc.2.The brush has 10 pieces nylon brushes with different diameters. You can always find an adjustment tool when cleaning holes, blind spots.3.Easy to enter hard to reach spaces, and no more dust left in your life.4.No need to worry about scratching your items when cleaning. Enter hard-to-reach spaces5.Brushes come with detachable ring and suitable hardness.