Sweet Dreams relaxation aromatherapy Back Wrap in a variety of cotton prints. The Back Wrap ties around your waist with comfortable 3" wide cotton twill ties to offer soothing heat or a cool, weighted, relief for aching muscles. Our Heating Pads are filled with flaxseed and lavender, or Unscented with flaxseed only. Directions: Can be used hot or cold. Back Wrap can be stored in your freezer for at least 20 minutes to chill. Keep in a plastic bag to avoid getting the flaxseed wet. To heat, place Back Wrap in the microwave for 1 to 2 minutes. Do not overheat. Measures 21.5" x 7.5" and comes boxed. Handmade in Portland, Oregon, USA.