Useful for keeping track of your life total in MTG or other CCG's. Number rings lock in on the numbers.
You will need one shaft, three number rings, and two endcaps. The shaft is VERY tight on the end caps.
11/5: Added 2-digit shaft, both shortened by 0.5mm for a better fit. Also added an inset number ring and shortened endcaps.
No supports are required. I printed at 0.15mm.