Asian Jewelry Box with unknown background.

Hi there! I was gifted this lovely jewelry box, and know nothing of the origins. I'm just here to find a little information.

There are two figurines on the top, two on the front and one on each side. I'd especially like to know what they are made of. I saw an ebay listing with one similar saying it was Ox Bone and the box was dated from the early 19C. I have zero way of knowing if that were accurate. :) 

Thanks to anyone who can help.