The magnetic sign measures 4" x 6" and is made from a high quality and durable Aluminum with 3.5" x 5" magnet attached to the back. Graphic is multi-colored and made in the USA. Can be easily installed most metal surfaces such as metal refrigerators, file cabinets, metal doors, lockers and much more. Ever had to convert inches to decimals or mm, weights to metric, fahrenheit to celsius or MPH to KM/H? This magnet will help that solve problem, it has conversions for Length, Weight, Temperature and Speed. It is small enough so it does not take up much space but large enough to read. It will make a great addition to your kitchen.