The unique Tripartite Segmented Design enables more even temperature distribution for greater comfort. Livingstone Hot and Cold Pack 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. Livingstone Hot and Cold Pack is reusable, freezable and microwaveable. Comes in pair, whilst one is being used, have another one ready as spare. A pair of matching non-woven pouches is also included for the fabric feel and touch.