This support has a Velcro fastener, is tan in color, and adjusts easily to fit any wrist for comfort and Recommended when immobilization of the wrist and/or thumb is needed. Semi-rigid thumb spice portion is contoured to provide intimate support, immobilization and thumb abduction. The unique design of the foam spice protects the thumb from impact or shock without any uncomfortable binding or stitch seams. The splint has a metal palmer and dorsal stay to prevent flexion and extension. Loop lock closures allow for quick and easy one-handed application. Ideal for treatment of post-surgical treatment of wrist and thumb injuries, and especially for the treatment of Basal Joint Arthritis, De Quatrain's Tenosynovitis, tendonitis, accumulative trauma disorders of the thumb and wrist, strains/sprains of the thumb joint (MCP), advanced Carpal Tunnel Syndrome, and after cast removal. Contains Latex To determine your size use the chart below measuring the circumference of your wrist.