Versatile: Wrist/thumb orthosis ideal for wrist sprains and strains, scaphoid injuries, carpal tunnel syndrome, Gamekeeper's thumb, and de Quervain's Syndrome symptoms.. Wrist and thumb support: Dual aluminum stays support palmar surface of wrist and extensor surface of thumb.. Lightweight fabric: Durable, lightweight fabric lined for breathability and comfort. Adjustable: Malleable, removable stays allow customized fit and proper angulation.. Extra small fits those with a wrist circumference of up to 5½ inches.. Hand washable.