product description1.MULTIPLE SIZES: Set of 10 Nylon Brushes with varying diameters. The diameters for these 10 brushes are 2, 3, 4, 5, 6, 8, 12, 16, 20 and 24mm. They are suitable for bottle, teapot, airbrushes, espresso machines etc, which can meet most needs of household cleaning. With this cleaning brushes in multiple sizes, you can always find a fit tool to clean gaps, dead angle places.2.FLEXIBLE: The flexible stainless steel handle, which can be to conform to odd shapes.3.APPROPRIATE HARDNESS: The brushes come with a detachable key ring and appropriate hardness. So every brush can be taken out easily, and don't worry about scratch your items when cleaning any more, such as glasses, jewelry, cell phones, etc.4.PROTECTIVE DESIGN: Not only prevent scratching the items, but also protect you from hurting yourself when cleaning.5.DISHWASHER SAFE: Made of stainless steel and nylon bristles, safe to wash dishes and drink straws. Well-made nylon bristles is also not easy to pluck.