According to Essence this calendar contains products for eyes, face, lips and nails and limited products.
All I know that it is available on German Amazon over here (affiliate link). Now that I am writing this not that much stock is left. However, I have no clue if there will be a restock, but of course better to act quickly.
I actually got this calendar myself back in 2016. In that time there were still only nail products in the calendar, but it was just so much fun!