Are you looking for a product that was designed with comfort and purpose in mind, built to last, easily transportable, and even therapeutic…you just found it! Note: The OH Model is 4.5 inch longer and 6 inch higher compared with RS Model Patented design of the Ergolounger Chaise Lounger allows the relaxation of tense, stressed muscles, with proper support for the head, neck, and lower back. Since the Ergolounger passively stretches the vertebrae to relieve nerve and disk pressure, it is the ultimate portable therapeutic lounge chair. Available in 2 different sizes.