Quick and important lesson.
If you are going to buy dice to play a Tabletop RPG, make sure they are easy to read.
The dice pictured here have high contrast, you can read them easily from across a table.
|Conversely, these dice are shit.|
Low contrast between the number and the background makes it hard to read.
None of that swirly distracting crap is going to help you play the game.
They're random number generators, stop complicating them with nonsense.