Using this Geomag Mechanics Compass set is super easy. Just start by connecting the magnetic rods to the non - magnetic steel balls. You can use the indicator rod to add special features to your creations. Let your imagination run wild and build anything you can think of, like cars, buildings, or even animals. When you're done playing, make sure to keep the pieces in a safe place, away from small children who might put them in their mouths. To maintain the set, simply wipe the pieces with a dry cloth from time to time. Avoid getting them wet as it might affect the magnetic force. Have fun building!