About this 3D model
This is a small counter to keep track of your characters life (Or any other number you would like). It's easy to make for bigger or smaller numbers just by printing extra number-cogs. It's hold together by a small rubber band that is attached to the end-caps inside of the counter (You should be able to pull it through the arc and around the part to fasten it). When changing it, you just pull it apart a little, turn the cogs and then the rubber band locks it in place again.