Dishwasher Magnet Clean Dirty Sign Shutter Only Changes When You Push It Strong Magnet or 3M Adhesive Options Indicator Tells Whether Dishes are Clea Suitable For All Dishwashers : Full size soft magnet on the back with strong magnetism.If your dishwasher is not magnetic, don't worry, we have double-sided tape for you.They don't leave any marks on the surface of your dishwasher. Scratch-Free Strong Magnet: Full-size soft magnet on the back, which can be safely maintained on any magnetic surface.Built-in industrial magnets are covered with soft silicon to protect your dishwasher. Perfect Size And Durability: The perfect size is 7 x 2 inches and the clear, eye-catching text makes it easy to read, but not combative, so you can read it with ease!Smooth and durable plastic looks great on any dishwasher. Easy To Use: Easy to manually switch clean and dirty.However, when you open or close the door of your dishwasher, it won't change on its own because there is a resistor inside that will keep the shutter sign in position. Unique Gift Idea : A Great gift for Mothers Day, New Homes,Housewarming,Christmas. This is a meaningful, practical gift .Your mom, wife, grandparents,girlfriend and friends will all love it!Loving and useful gift ideas for anyone!