Maintains a resting position of the wrist, hand and thumb. A plastic palmar support with dorsal velcro closures. The wrist/hand is held in a mid pronation/supination position. The fingers and thumb are held in a comfortable, slightly flexed position. Similar to night resting splint, however, the joints of the hand are held in a greater degree of flexion. Sizing (cm) XS 22 (Left /Right