ObusUltraForme Backrest Support - Medium Size - provides total back postural alignment to aid in the relief and prevention of back problems.
Available in three different sizes for optimal ergonomic alignment:
Small for heights 5 feet 2 inch tall and under
Medium for heights 5 feet 3 inch to 6 feet 2 inch tall
Large for heights 6 feet 3 inch tall and above
Made of polyurethane foam