Double Brush: The cup brush has double sided bristles to make cleaning your glassware a breeze. Just make sure you rotate the glass clockwise on the center brush as turning counterclockwise will unscrew the center brush. HIGH QUALITY AND DURABLE BRUSH: The glass cleaning brush is made of PP+PVC material, flexible bristles, moderate hardness to ensure removal of stubborn dirt and longer life. Suction cups. There are three large suction cups at the bottom of the brush. The suction cups are firmly attached to the wall table or to the bottom of the sink, simply slide the glassware between the two sets of bristles for easy use and cleaning. Removable and easy to clean: The creative lazy rotating cup brush is removable and washable, easy to drain, clean and hygienic. Color: Gray Size: 17.5*14cm Product list: 1*cup brush