Cruiser De Light 4 Wheel Rollator, 1 Each Vital Signs Monitor Accessorie Active against: Gram Positive Bacteria The unfolded towel measures Active against: Gram Positive Bacteria and Gram Negative Bacteria Large * Has a fully adjustable internal buttress which ensures correct positioning and control of patella movement * Allows vertical tracking of the patella during vertical flexion extension * Assists in the treatment of patella problems including instability pain and subluxation (looseness) it has the added benefits of locking hand brakes and a seat that comes up so the user can walk inside the frame to reach counters or shelves It is the only 4 wheeled rolling walker that folds and has adjustable legs like a standard folding walker