Koolit™ 600 Series Cold Pack, 1 Case of 36 Cast Bandage Covers Helps protect skin from friction MSHQ 8790L Helps protect skin from friction injury Massage setting to relax lower back or neck * Can provide relief from conditions aggravated by poor posture * Place between your knees while lying on your side for a more comfortable sleep * Can be used in combination with the ObusForme© Highback Backrest Support or your car s headrest for added neck support * Made with polyurethane foam * Elastic strap holds the ObusForme© Supporting Roll with Massage in the position you desire * Brushed polyester cover can be removed and sponge washed * Small lightweight and portable for use anywhere you sit at home in the office and on the go * Battery Operated 4 AA batteries (not included) * Phase change formulas ideal for products requiring frozen temperatures or extreme cold that may not tolerate dry ice or carbon dioxide Outer film layer assures products arrive in top condition by absorbing condensation