Personalize your work-space comfort with temperature control and back support to help relieve back tension. The Heat and Soothe Back Support features a gel lumbar pack that conforms to your individual anatomy to provide the ultimate in flexible back support. Lumbar pack heats in a microwave or chills in a refrigerator to provide soothing warmth or cooling comfort. Contemporary styling features hot/cold icon stitching in contrasting color. Back support also features an adjustable strap with a buckle to fit most office chairs.