The BackMax is a 3-piece multi-functional wedge system providing complete back and body support. Perfect for those who suffer from acid reflux back pain edema and physical stress. It's also helpful to those recovering from surgery. Arrange the ergonomically designed wedges in multiple configurations to suit their individual support needs just zip them apart and use each cushion individually or in any combination. The BackMax can even recreate the zero-gravity position placing your body at a 120-degree angle one of the most relaxed positions for your body. Unique zippered connections allow full adjustability! Plus the set comes with a neck roll for added support. Included with your BackMax is a half-roll pillow back and torso wedge knee and leg wedge and footrest. These 4 components can be used individually or combined with a heavy-duty zipper to create multiple positions for ultimate support and comfort.