This is the four sided die (d4) in my hedron series. This die measures about 16 mm (0.6 inch) across the opposing faces, and about 28 mm (1.1 inch) from tip to tip. It weighs about 14 grams. The design is hollow for better results when printing in steel and the other metal options. For a solid plastic version see here
. The die is well balanced and gives a fair roll.
For the other dice in this set, please have a look at the Hedron category
in my shop.