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