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. The die is well balanced and gives a fair roll. This design has a solid core to give it more weight when printed in plastic. There is also a hollow version
of this model, for printing in metal.
For all the other dice in this set, please have a look at the Hedron category
in my shop.