1980s - Shreddies Spokey Dokeys Free in Packets

Set of 6 different coloured plastic shapes issued in packets of 3 which can be placed on bike spokes to make a noise when you ride.  4 different packet backs in association with riding safety.  Possibly also send away with this offer for reflective belt

CAN YOU HELP?

Picture of the packets, date issued and if belt was part of offer

better quality scan required