Unique blackboard badges allow staff to express themselves! Blackboard badges include UV Inket logo, no personalization and pin fastener 153-PS or 153-EZ. Magnetic or other fasteners available at additional cost. Blackboard badges are made from .060 black or white polystyrene and are packaged 50 per bag. Optional personalization or variable data available. You can write on with chalk or liquid chalk to add a name or message. Badges will show scratches after repeated writing and cleaning.