The Functional Forms Sidelyer is designed to help improve body alignment, reduce pressure and facilitate regulatory functions. Promotes proper head and mouth use.Made of anti-bacterial/anti-fungal, water resistant, breathable nylon that is made specifically for health care applications and is easy to wipe clean with neutral soap suds and lukewarm water. Then rinse and dry. Soft, washable anti-slip surface on bottom. Meets CAL 117 fire regulations. No latex. Also available in soft vinyl. Cushions measure 12"H x 14"W x 46"L.