... 1.multiple use for ruler and magnetic strip 2.Hard plastic with magnet 3.Stick ... on metal surface colorful magnetic ruler strip Application: Widely use in school, office, supermarket, ... Can be multiple used for a ruler or magentic strip, attached stably to the metal surface, such as: ... , such as magnetic card case, round magnet, magnetic strip, pop clip, acrylic sign hold, all kinds of ID ...