ThumperÈ Maxi Pro Oxygen Conserver Concentrators Features smooth seamless upholstery that Style:Right Ear Features smooth seamless upholstery that does not collect fluids and is easily cleaned Infinitely adjustable back * The leg rest extends automatically and three positions can be attained by the user * The non porous blow molded fold down side tray with cup recess can be factory mounted on either side * Each chair in the CareCliner Series features a standard Trendelenberg release with handle accessible from either side * It also has a built in ergonomic headrest adjustable elastic bands on the back frame that provide exceptional comfort and an elastic open seat base * All of these features combine to create the ultimate in comfort durability and value * Weight capacity: 275 Lbs * Seat: 21 Wide * Adjustable Band: 120 200mm 4 s muscles assuring virtually no feedback on the therapist 66 m) Power Cord * Variable Speed: 20 40 Pulses Sec * Stroke: 0