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 hard bristles: Remove the dirt in the corner groove of the container.
Quality Material: These portable cleaning brushes are made of heat resistant polypropylene plastic, strong and wearable, washable and safe, not easy to break, and can withstand 80 degrees Celsius, which can serve you for a long time.