Features Carefully designed to limit thumb and wrist motion for relief from the pain of arthritis or tendinitis or for protection following cast removal. The ThumSaver CMC Long holds the thumb in a functional position that allows you to grasp objects to perform light daily activities. Thin, lightweight splint includes felt pads to provide cushioning where needed. Seamless molded design will not break or change shape with heat and resists stains. Shown with 3pp ThumSock (black) for padding, which is not included. Firm Control Sizing and Order Information Instructions: Measure the length from the IP joint (knuckle at the end of the thumb) to the wrist. Measure around the IP joint. 3-Point Products is not responsible for incorrect or improper sizing or fit of splints.