[3 in 1 Multifunctional Cleaning Brush] – U-shaped brush: fits the cup rim to clean stubborn stains around the mouth. Gap brush: cleans narrow grooves on the inner wall of the cup lid. Corner brush with firm bristles: removes dirt from container corner grooves. [Quality Material] – These portable cleaning brushes are made of heat-resistant polypropylene plastic, durable, washable, and safe. Resistant to breakage and can withstand temperatures up to 80 degrees Celsius, providing long-lasting use. [Thoughtful Design] – Rotates 180 degrees and swaps easily, compact and efficient, simple to change. Features hanging holes for convenient storage when not in use. [Easy and Safe to Clean] – These 3 in 1 compact multifunctional cleaning brushes help clean corners and crevices of bottle lids, wine glass caps, nipples, vacuum cups, and more. Safe for use without damaging your items, offering a pleasant cleaning experience. [Wide Application] – Suitable for various cups and bottles, including mugs, glasses, milk bottles, sports bottles, wine glasses, tea cups, and more. Can also be used for kettles, kettle lids, plates, and pacifiers.