The Dice Lab Opaque Black with White Orbiform Large D4 Dice
This is a 4 sided D4 dice measuring 34mm in height.
Orbiforms have the same width in every direction.
If you put a book on three of these it will roll smoothly on the table, just as a book on three spheres would. Unlike conventional tetrahedral four-sided dice, these dice roll smoothly and wobble as well. The shape is mathematically fair, giving equal probability for the four results.
This is a 4 sided D4 dice measuring 34mm in height.
Orbiforms have the same width in every direction.
If you put a book on three of these it will roll smoothly on the table, just as a book on three spheres would. Unlike conventional tetrahedral four-sided dice, these dice roll smoothly and wobble as well. The shape is mathematically fair, giving equal probability for the four results.