Very nice way to advertise your business from your cars rear window. It works great. Can be use to put long messages, example: type of business, businesses name, phone number, websites, plus some more details.
I bought this for use when I'm driving for Lyft and Uber and my riders get a kick out of it. It announces that I offer water, lifesavers, mints and phone chargers. Also, asks for 5 stars and wishes them a happy holiday when needed. Instructions were pretty straight forward