Unique blackboard badges allow staff to express themselves! Blackboard badges include a full color imprint and pin fastener or 153-EZ. Magnetic or other fasteners available at additional cost. Blackboard badges are made from .060 black polystyrene and are packaged 50 per bag. Blackboard badges are not personalized. You can write on with chalk or liquid chalk to add a name or message. Badges will show scratches after repeated writing and cleaning.