The Dice Lab d120 Disdyakis Triacontahedron, Opaque
$15.00
The ultimate fair dice allowed by Mother Nature (i.e., mathematics)! The d120 is based on a polyhedron known as the disdyakis triacontahedron. Each face is an elongated triangle in this 2" diameter, 1/5 pound monster of a die (50 mm and 95 grams). These dice are perfectly numerically balanced, with the same sums for numbers around vertices of the same type. The opaque d120 is currently available in white, black, red, green, purple, and blue. You can specify your color choice in the Shopping Cart. Includes a black velvet bag with embroidered Dice Lab logo.
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The Dice Lab Set in Black
$15.95
*** Not available at this time ***
This unique set consists of a truncated tetrahedron d4, a truncated octahedron d8, a rhombic dodecahedron d12, a deltoidal icositetrahedron d24, and a deltoidal hexecontahedron d60. Save over $1 compared to purchasing the five individually. Comes in a recloseable plastic tube.
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Skew Dice Pair
$5.95
Packaged pair of Skew Dice, d6 in the form of an asymmetric trigonal trapezohedron. These wacky-looking dice are actually just as fair as regular six-sided dice. Unlike other dice, Skew DiceTM aren't mirror symmetric. This means they come in two distinct forms that are mirror images of one another. Available in black, white, red, blue, green, clear, translucent amber, and malachite (swirled green with gold pips). You can specify your color choice in the Shopping Cart.
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Numerically-balanced d30
$4.00
The Dice Lab's unique d30, numbered such that the sums of the faces surrounding vertices of the same type are uniform. This means ten vertices where three faces meet summing to 46, ten summing to 47, six vertices where five faces meet summing to 77, and six summing to 78. Such a "magic numbering" reduces bias due to physical imperfections that could cause a particular region to preferentially face up when rolled. These dice retain the convention of 1 being opposite 30, 2 opposite 29, etc. With a diameter of 27 mm, they are midway between the Dice Lab d24 and d48 in size. Available in black, white, red, and green.
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Non-Transitive Set of 4 Dice
$16.95
These dice work in a cycle, such that each die is beaten by another die 2/3 of the time. So no matter which die your "opponent" chooses, you can always choose a die that is likely to roll higher. This set is a version of Efron’s 4-dice non-transitive set, invented circa 1970 by Bradley Efron. This version has the advantage over the original version of not having a die with all numbers the same. The numbers are also arranged to maximize fairness, with the largest number across from the smallest, etc.
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d4 Truncated Tetrahedron
$2.50
d4 in the form of a truncated tetrahedron. Unlike the standard d4, the number faces up. Currently vailable in black, white, red, blue, green, purple, and translucent amber. You can specify your color choices in the Shopping Cart.
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