The mini Cup Crevice Cleaning Tools brush head can rotate 360 degrees in one direction, with U-shaped silicone cupping brush, stranded slit brush, stiff bristle corner brush three different functions of the brush head.U-shaped bottle cup lid brush can match the cup mouth to clean stubborn stains around the cup mouth.The gap Brush can Clean the narrow grooves on the inner wall of the cup cover.Corner brush with hard bristles can Remove the dirt in the corner groove of the container.One swipe for three purposes, bringing you a new cup-washing experience.