The Collarsplint™ helps to stop hyperextension along with instability at the mid finger joint (PIP joint) or end thumb joint (IP joint) or end finger joint (DIP joint). Hyperextension can be caused by injury to the joint, Ehlers Danlos Syndrome (EDS), Benign Joint Hypermobility Syndrome (BJHS), or other condition.
- joint injury, resulting in the finger or thumb bending too far backwards
- Ehlers Danlos Syndrome (EDS)
- benign joint hypermobility syndrome (BJHS)
- instability at the PIP, DIP or IP joints
- sideways curvature
- mild deviation
Collarsplint™ Hypermobility or Instability
Please find the size above and below the affected joint.
It is HIGHLY recommended to use a ring sizer or multisizer to find your sizes. If you don't have a ring sizer already, I have sizers available here or feel free to purchase one elsewhere to take your measurements. A lot of times, a jeweler will help you find your ring sizes as well.
If you have a sewing-type "fabric" tailor's tape measure, that can be used. Centimeters/millimeters are more accurate than inches, and a more narrow/skinny tape measure will be even more accurate. PLEASE NOTE: If using a tape measure, please allow for size discrepancy, usually on the large size. Tape measures can be off by as much as 3 ring sizes if done with too wide of a tape measure or in inches. Again, a ring sizer or multisizer is the best method. Once you have your cm/mm measurement, it can be converted into a US ring size at ringsizes.co