Counting bracelet

You need to print:
2 half bracelets
8 half rings.

Assembling the bracelet is very easy. Put half rings in slots of each half bracelet, then slide each half bracelet around your wrist. The number "4444" is displayed. Select digits by moving them thanks to little spikes on half rings.
To take it off, display "4444", make sure half rings are aligned properly, and slide half bracelets away.

If half rings are too stiff: sand them.
If half rings move too easily: apply a thin layer of hot glue or nail polish.

If you want the bracelet with more or less digits, please contact me. I can can easily lengthen or shorten it.