[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 withstand temperatures up to 80 degrees Celsius, providing long-lasting use. [Thoughtful Design] – Rotates 180 degrees and swaps quickly. Compact and 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 effectively clean corners and crevices of bottle lids, wine glass caps, nipples, vacuum cups, and more, without damaging surfaces, ensuring 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.