The main unit pillow case has Velcro(TM) strips on the back positioned such that when placed upon the base unit, the SimBalance system’s tilt angle can be varied and locked between about 10 degrees and 35 degrees, ideal for simulated head maneuver exercises. An extra main unit pillow case allows the SimBalance system to be used without the cover case to make it convenient to change the configurations of the SimBalance system without having to reach inside the cover case. The main unit cover case fits all standard-sized pillows. Users who prefer to sleep on two pillows for comfort (and not necessarily for simulated head maneuver exercises) may purchase the main unit pillow case and the stack pillow case for stacking their own favorite pillows.
Care instructions: The pillow case should be turned inside-out, machine-washed warm or cold with like colors, and tumbled dry at medium heat.