Hot and cold physiotherapy bag, ice bag or hot water bottle hot and cold multi-purpose physiotherapy bag for cold therapy use ice cold water add hot water to use a hot water bottle. ice therapy is perfect for headaches ,sore muscle, knee and joint pains it's superior quality material and leak proof design ensures the injured area remains dry and provides you with needed relief. it's amazing for icing down headaches, sore muscles, and other knee or joint pains. get immediate cold therapy by just putting ice cubes or crushed ice in the bag and locking it securely. its superior quality material and leak-proof design makes sure that the injured area remains dry and provides you with that needed relief. hot water bottle bag dual use summer ice bag reusable knee head leg relief pain ice bag hand warmer household items