[3 in 1 Multifunctional Cleaning Brush] – U-shaped brush: fits the cup rim to clean stubborn stains around the cup 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 and washable, safe and long-lasting, not easy to break, and can withstand temperatures up to 80 degrees Celsius. [Thoughtful Design] – Rotates 180 degrees for easy switching, compact and efficient, easy to handle, with hanging holes for convenient storage when not in use. [Easy and Safe to Clean] – These 3 in 1 compact multifunctional cleaning brushes help clean hard-to-reach corners and crevices of bottle lids, wine glass stoppers, nipples, vacuum cups, and more, without damaging your items, providing a pleasant user experience. [Wide Application] – Suitable for various cups and bottles, including water bottles, glasses, milk bottles, sports bottles, wine glasses, tea cups, and mugs. Can also be used for kettles, kettle lids, plates, and pacifiers.