?3-in-1 cleaning brush: U-shaped brush: match the cup mouth to clean stubborn stains around the cup mouth. Gap Brush: Clean the narrow grooves on the inner wall of the cup cover. Corner brush with stiff bristles: Remove the dirt in the corner groove of the container. Thoughtful design: rotated 180° and swapped, small and fast, easy to change, with hanging holes, can be hung up when not in use, and convenient storage. Easy to clean: easy to clean, rinse with water, and dry quickly. Wide Application: Suitable for all cups and bottles, such as cups, glasses, milk bottles, sports cups, wine glasses, tea cups, mugs, etc. It can also be used for kettles, kettle lids, plates, pacifiers, etc.?