8" Universal Wrist and Thumb SplintIdeal in treating De Quervains Syndrome, Gamekeepers Thumb, and carpometacarpal instabilities, the premium wrist and thumb splints feature the same construction and ease of use as the wrist extension splints, with the addition of an adjustable thumb stay, perfect for immobilizing the thumb for during the healing process. The malleable palmar stay stops just short of the distal palmar, allowing full range of motion for the fingers. One size fits all.