[Easy To Use]: Easy to manually switch clean and dirty. However, when you open or close the door of your dishwasher, it 't change on its own because there is a resistor inside that keep the shutter sign in position. [Perfect Size And Durability]: The perfect size is 9 x 9cm, 9.5x5.5cm and the clear, eye-catching text makes it easy to read, but not combative, so you can read it with ease! Smooth and plastic looks great on any dishwasher. [Scratch-Free Strong Magnet]: Full-size soft magnet on the back, which can be safely maintained on any magnetic . Built-in industrial magnets are covered with soft silicon to protect your dishwasher. [Suitable For All Dishwashers] : Full size soft magnet on the back with strong magnetism. [ Gift Idea] : A Great gift for Mother's Day, New Homes, Housewarming, Christmas. This is a meaningful, practical gift .Your mom, wife