You can put up to 60 pairs of earrings. The total print takes about a small dozen hours. Assembly manual:
Print the main trunk
if you have printed both parts, assemble them together. You can use glue but it is not essential.
Take the small clips and insert the branches into them.
Take the branches and just created clips and fit them into the trunk (The bottom branch moves a bit more, it's so you can remove it without dropping all your earrings)