1. [High Quality]: These tube brushes are made of nylon bristles and stainless steel rods, with good elasticity, no lint, no rust, environmentally friendly and durable. 2. [Space Saving]: The cleaning brush is designed with a ring for easy storage.When you're not using them, you can place them on the kitchen or bathroom wall, or in a closet or drawer. 3. [Efficient cleaning]: Can be bent and cleaned at different angles, bypassing awkward angles and hard-to-reach areas, allowing the spout of various containers to clean effectively. 4. [Multifunctional]: The complete set of multifunctional cleaning droppers is suitable for cleaning all kinds of containers, including milk bottles, straws, cups, water bottles, beer or wheat cups,kettles and pour spouts of all sizes. 5. Available in 12 different sizes, all can be applied