I bought a set and a lot of singles, absolutely love them!
And since you only need one, make it this one.
So, they are random. If you are tired of flipping a plastic dice that seems to land on the smae number pretty regularly, that won't happen here. On top of it htey look fantastic and feel great. A little heavier than plastic not as heavy as a zinc alloy. They roll very well.
I love these dice. I really feel like the way these are built just are great to roll and feel like they are truly random