3 in 1 Multifunctional Cleaning Brush - 1. U-shaped brush: match the cup mouth to clean stubborn stains around the cup mouth. 2. Gap Brush: Clean the narrow grooves on the inner wall of the cup cover. 3.Corner brush with hard bristles: Remove the dirt in the corner groove of the container. Material &Quality- Made of high-quality ABS+PP+PET+silica gel, Bottle Cup Lid Detail Brushes are made of heat-resistant polypropylene plastic sturdy and durable, and can withstand temperatures up to 80C, with high quality. Easy and Safe to Clean - Tools bottle brushes to clean the dirt in the groove, the disassembly device is used to pry the seal ring and clean the crevices, and the white brush can clean the bottle cork dirt. And the bottle top cleaning brush is gentle on any surface and won't compromise your home cleaning. The brush is powerful and easy to clean, just rinse with water and dry quickly. Wide Application - 3-In-1 Cup Lid Crevice Cleaning Brush suitable for all kinds of cups and bottles, such as cups, glasses, milk bottles, sports cups, wine glasses, tea cups, mugs, etc. Can also be used for kettles, kettle lids, plates, pacifiers, etc. Intimate service: If you have any questions about the task, please feel free to contact us! Your satisfaction is our greatest support! We will be online 24 hours!