Span America Geo Wave™ Geri Chair Recliner Cushion, 18 Inch, 1 Each Foot Massagers Rolls Anti embolism stocking provides a gentle 14804 Anti embolism stocking provides a gentle massaging action to help prevent the formation of blood clots associated with post surgical inactivity s position over time * Lightweight & easy to handle and carry * Cushion can be easily cleaned with soap and water * Cover is machine washable * Flame resistant black neoprene (not made with natural rubber latex) support pad can be patched to extend use * Separated air cells allow air circulation to reach the surface of the skin * Unique segmented fins are specifically engineered to address the effects of the reclining induced shearing that is typical of institutional seating Patent pending design has three distinct zoned orientations to reduce shear in multiple directions for specific seating areas