You will enjoy choice of one lava shells self heating technology therapy from the selection back massage 30 minutes or relaxing massage 60 minutes or face and body massage 75 minutes or choice of one lava rescue heat 38 ice therapy from the selection back 38 shoulder treatment 30 minutes or full body treatment 60 minutes for the ultimate calming massage the lava shells relax treatment is the soothing solution as the therapist glides the marine polished sea