WRIST/THUMB SUPPORT ONE SIZE FITS MOSTFeatures: Limits thumb range of motion. Immobilises MP and CMC joints. Wrap around design for easy application and removal. Allows free range of motion for the fingers. How To Wear: Position the thumb in the thumb locking area of the support. Fasten the hook closure around the thumb securely. Wrap and fasten the hook closure around the wrist. Application: De Quervain's disease Thumb sprain strain CMC joint injury Sizing Chart: Measure circumference of