Moderate Hardness BristlesThe bottle cleaning brushes are made of durable and anti-scratch coconut silk, very moderate hardness, so you don't have to worry about the dirt inside the bottle that can't be removed, and the inside of the bottle will not be scratched. In addition, the bristles are neatly and densely arranged, have a soft feel, strong toughness, are safe and non-toxic, and can be used with confidence. Upgrade DesignThe brush heads of the innovative and upgraded cleaning bottle brushes are equipped with a long and flexible wire core, it can avoid scratching the bottom of the bottle. The twisted wire design of the handle can bend and clean at different angles, and can bypass difficult corners and hard-to-reach areas, so that you can effectively clean the spout and bottom of various containers. Easy to StoreEach cleaning brush is equipped with a ring for hanging, drying and storing. When not in use, they can be hung on the wall of the kitchen or bathroom, or stored in a cabinet or drawer. Various SizesDifferent sizes of cleaning brushes are suitable for cleaning all kinds of containers, including milk bottles, straws, beakers, kettles and spouts of different sizes, which can meet your different needs. A complete set of multifunctional cleaning bottle brushes will give you a sense of value for money. Application scenariosThe baby bottle cleaning brush set is suitable for baby bottles, hummingbird feeders, kombucha and beer brewing bottles, wine and carafe decanters, sports water bottles, spiral glass pipes and bongs for smoking weed, and bathroom sinks.