About this 3D model
To make this work, you still need a ball bearing that will attach to the two parts. I used model 6200, measurements 30mm x 10mm x 9mm, but you are welcome to edit the parts around your own ball bearing should you use a different model. This is a life counter for Magic: The Gathering. Unlike the usual life counter, this one can count from 0 to 99, which is designed for EDH / Commander. I don't claim any ownership/copyright/trademark over the life counter. You may use it as you see fit.