1980s Enamel Boots Stud Earrings

Genuine 1980s stud earrings.
For when it's not enough to wear your DMs or Converse on your feet...you need them on your ears too. 
(Helpfully not too detailed, so could be either !)
Enamel, 1cm tall, I have 1 of each of the colours shown.
I got them from an old seaside jewellery kiosk that closed in the mid 80s and then the stock was stored for 40 odd years in a cellar - so in excellent unused condition.