This is a small version of the D4 Shell die, specially designed for Raw/Polished Bronze, Raw/Polished/Gold Plated Brass and also available in Silver.
The Mini D4 Shell Pendant is a four-sided die, so you can roll it: it's special shape makes it roll better than most of the polyhedral D4. And the result is very easy to read: it's just top the die!
And you can also wear it as a pendant: it is made so that you can hang it to a necklace and still show any of the four numbers from 1 to 4 the right way up.
If you like it, you will perhaps also appreciate the geometrical shape of the Dod Earrings...