they're tech specs decoders. Up to 1988 G1 tech specs had all the stats "scrambled" that needed a transparent red piece of plastic called the Tech Specs Decoder(TM) to decode the information. A red piece of cellophane will do... or you could just look - they're not that hard to see through!Originally Posted by pheonix83
The Transformers Monopoly Chance and Community Chest cards on the other hand have been done a lot better in that it's really hard to read them without the decoder!