Dice have been around for millennia.
Apart from adding more sides for certain games, there really wasn’t much anyone could do to improve on the basic design.
Until, that is, somebody took the entirely illogical step of making them round.
Surprisingly, this doesn’t render them totally useless: an internal mechanism makes it come to rest with one number showing on top.
This doesn’t work flawlessly, though, so you may need to appoint a dice referee to avoid bloodshed.
They’re about the same size as normal dice, so you can pretty generally see what number is displayed by looking at it from directly overhead, though someone who’s about to lose the game may still dispute this.
If you’re not playing for very high stakes, of course, this isn’t likely to be much of an issue.
Watching them race across the table without tumbling is certainly an unusual experience, and both adults and children will have a fun time trying to figure out how they work.