[3-in-1 cleaning brush] U-shaped brush: fits with the mouth of the cup to clean stubborn stains around the mouth of the cup. Gap brush: Clean the narrow groove on the inner wall of the cup lid. Bristle corner brush: remove the dirt in the corner groove of the container. High Quality MaterialThese portable cleaning brushes are made of heat-resistant polypropylene plastic. Strong and durable, washable and safe, not easy to break, can withstand 80 degrees Celsius, can serve you for a long time. Intimate DesignInterchangeable by rotating 180, small and fast, easy to replace, with hanging hole, can be hung when not in use, quick drying, convenient storage. Easy and Safe to CleanThese 3-in-1 miniature multi-purpose cleaning brushes can help you clean the nooks and crannies of bottle caps, wine glass lids, pacifiers, vacuum cups, etc., without hurting your bottles, and bring you a wonderful experience in use . WIDE APPLICATIONSApplicable to all kinds of cups and bottles, such as water cups, glasses, feeding bottles, sports cups, wine glasses, tea cups, mugs, etc. Can also be used on pitchers, pitcher lids, plates, pacifiers and more.