Rolyan D-Ring Wrist Brace is the right choice for helping relieve the pain and discomfort of carpal tunnel syndrome, arthritis, tendonitis and other wrist disorders. Prevents unwanted flexion or extention, yet allows unobstructed motion of the fingers and thumb. Polyester/cotton laminated to 3/8" foam. White brace is lined with nylon tricot fabric. Machine wash, air dry. To determine size, measure wrist circumference. Featues: Non-elastic construction does not resrict circulation * Circumferential design holds the brace in position durring application * D-ring closures provide tention control to adjust amount of support. * A double layer of stockingette under closures cushions straps * Forearm length is proportional to brace size * Nylon stay pocket for extra duribility * Dark color is great for the workplace.