The generously sized back wrap provides comfort for lowerupper back pain torsomidsection injuries and hamquad pulls the adjustable strap keeps it comfortably in place therapearl hot and cold therapybull conforms to your body ndash extremely comfortable and soft on skinbull mess free and reusablebull non toxic ndash free of bpa lead latex and phthalatesbull microwaveable and freezableuse hotpearls conform and deliver soothing heat therapy to the desired body part use for muscle painsp