This is the spindown
version of the twenty sided (D20) 'Kaladesh' die. This large sized version is intended for printing in plastic. There is also a smaller version available for printing in metal.
The plastic version measures about 62 mm (2.4 inch) from point to point, and abput 50 mm (1.9 inch) across opposing sides. In colored nylon, it weighs about 5 grams. The die is designed to be well balanced and to give a fair roll.
This version of this design has the numbers oredered in a spindown pattern, with consecutive numbers placed next to each other. This makes it easier to find the right number when using this die as a life counter in games such as Magic: the Gathering. If you are looking for a version with the numbers arranged as on a regular (RPG) gaming D20, please have a look here
The design of this die is meant to fit with the visual style of the latest expansion set for Magic: the Gathering, called Kaladesh. See here
for all my Kaladesh themed dice.