OCSI Static Air ROM Knee Orthosis Large Oxygen Conserver Concentrators Head Foot Bed: Ends and Casters: Nerve Sensory Evaluator Access Head Foot Bed: Ends and Casters: 38 x 7 Features an adjustment screw to customize rail angle to suit even the steepest stairs * Easily folds up to store out of the way and will not accidentally fall down causing an impace injuty * A machined precision tension fit hinge creates stable rock solid support * An excellent support option for sunken living rooms decks patios or 2 and 3 step stairs in garages * The P Treats mild moderate knee flexion contracture by applying low load prolonged stretch * Adjustable air bladders behind the knee conform to angle of the joint * Removable static setting hinge * ROM flexion and extension stop hinges * Gel knee pad and cuffs included * Antibacterial shear reducing fabric helps protect skin and limit odor * Fits left or right * Suggested code: L1847 * Sizing: Measure circumference 4 1 2 above and 4 below mid patella * Thigh cuff circumference: 18 22 * Thigh cuff circumference: 15 19 * Dynamic knee has traditional goniometer style hinge instead of KWIK SET hinge *