This is the solid version. The hollow version can be found here.
This sixteen sided die can be used to create I CHING hexagrams using the traditional yarrow-stalk-type probabilities discussed here:
https://aleadeum.com/2013/07/12/the-i-ching-random-numbers-and-why-you-are-doing-it-wrong/
and here:
https://en.wikipedia.org/wiki/I_Ching_divination#Yarrow_stalks
You would roll this once to generate each line of a hexagram.