Livingstone Hot and Cold Pack with Gel Beads for body and back. It relieves pain and swelling of minor injuries, bruises, cuts, muscle aches and strains plus sprains and headaches. Use hot to relax muscles and reduce pain, use cold to help reduce swelling and inflammation. Designed for your back, with fixation strap to ensure excellent fit and placement. The crystal velvet silky soft fabric is pleasant on the skin and helps reduce the risk of burns and frostbites.The product is reusable many times.