Use selected PP and thick sponge, the cup brush easy cleaning for various cup materials Flower Cup Brush with detachable sponge enhances cleaning efficiency, tackling hard to reach area in cups and bottles Safe sanitizing kids drinkware or maintain sparkling glassware in kitchens, offices, and cafes using this food grade cleaning brush Design for homemakers and coffee lover, its length prevents back strain while cleaning tall glasses and narrow containers The ergonomic flower shape cup brush through curved surfaces, ensuring thorough scrubbing for cups, ceramic mugs, and bottles