Resilient BristlesBottle cleaning brushes are made of durable, scratch-resistant coconut bristle with very moderate hardness, so you don't have to worry about dirt inside the bottle which cannot be removed the inside of the bottle will not be scratched. In addition, the bristles are arranged neatly and densely, have a smooth feel, strong toughness, are safe and non-toxic, and can be used with confidence. Upgrade DesignThe brush heads of the innovative and improved cleaning bottle brushes are equipped with a long and flexible wire core, it can avoid scratching the bottom of the bottle. The flexible handle can bend and clean at different angles, and can bypass hard-to-reach corners and areas, so that it can effectively clean the spout and bottom of various containers. Various Sizes & Unique ShapeEach brush has different dimension and unique shape 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 multi-functional cleaning bottle brushes will give you a sense of value for money. MultifunctionalBottle cleaning brush set is suitable for baby bottles, hummingbird feeders, kombucha and beer brewing bottles, wine and carafe decanters, sports water bottles, to spiral glass pipes and bongs for smoking weed, and bathroom sinks. 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 kitchen or bathroom wall, or stored in a cupboard or drawer.