With an adjustable 'C' bar to hold thumb in opposition, the?Comfy Opposition Hand Orthosis?(OPH-101) provides a completely adjustable enclosure of the thumb to position the MCP, PIP and DIP joints of the thumb.?Accommodates for abducted or adducted thumbs. Soft straps accommodate sensitive skin as well as slight fluctuations in edema and fragile skin. Choose either traditional Terrycloth material for our removable, machine washable covers?(free washing bag included). Side wings prevent ulnar/radial deviation. Fits right hand.