Finger splint for arthritis, hypermobility

This is a finger splint designed for people who have pain in their hands due to hypermobility, arthritis, etc. It can help stabilize PIP and DIP joints.

How to Scale to your Ring Size

This base ring design has an inner diameter of 14mm, approximately a US size 3. To scale to your size, first find the ring size of your knuckle, then find the inner diameter measurement of that ring size in millimeters. Divide that number by 14. It should be a number between 0 and 2. Finally, scale the model by that number or percentage.

If you need to find your ring size, here is a free printable (paper) ring sizer: https://www.macys.com/media/ring_sizer/ring_sizer.pdf

If you need to find the inner diameter of your ring size, there is a chart in the other files.

I have printed as small as a US size 1 and up to a US size 10 with good success.