Size Medium Right * Wrist Joint Circumference 6.5  - 7.5  * Comfortable  Firm Support For Weak  Injured Or Aching Wrists * Has Adjustable Locking Straps Together With A Metal Splint Positioned At 25 To Provide The Protection And Support Needed For Treating Carpal Tunnel Syndrome * Increases Circulation To Aid In The Treatment Of Repetitive Stress Injuries (rsi) And Tendonitis * D-ring Closure System For Ease Of Application And Secure Fit * Maintains The Wrist In A Neutral Cock-up Position