How understand the size of the hand?

Hi everyone, I’m interested in this project, and I wanted to ask if it is possible in deepar.ai to understand the size of the hand. To show the hand and understand how much it is for example in centimeters.

Hi we don’t currently support true scale for wrist tracking, we are working on this feature for glasses try on via ShopAR

Could you tell us more about the usecase for this feature?