Alternative D4 dice for ICRPG timers

These dice can be used as an alternative to tetrahedral D4s. They are optimized for use as countdown (-up) timers in systems like ICRPG in that the four sides are in numerical order, so a timer can be conveniently decremented (incremented) each round by turning the die by 90 degrees.

The dice are assembled from 2 parts. Both parts should be printed standing up (support required) to hide the print bed contact surface after assembly. 

It also allows to use 2 colours, it requires a colour change on one of the 2 parts (depending on the colour scheme you like. e.g. die with black shell and gold dots and caps → Requires core to be printed in gold, shell requires colour change)

The dice in the picture are printed with PLA and 0,1 mm layer thickness on a MK3S+