Sweet Dreams relaxation aromatherapy large heat wrap in a variety of cotton prints. Hand filled with flaxseed and lavender. Can be used hot or cold, and features a removable and washable cover. Directions: Heat wrap can be left in the freezer for at least 20 minutes to chill. To heat, place heat wrap in microwave for 1-2 minutes, making sure to test temperature to the touch before applying to body. Measures 9.5" x 20" and comes boxed.