Ice bag reaches to any contours of body, economical, light-weight, reusable and childrenfriendly. Ice is an inexpensive, yet astoundingly effective treatment for pain and swelling - one of the simplest, safest, and most effective self-care techniques for injury, pain, or discomfort in muscles and joints. Ice initially constricts local blood vessels and decreases tissue temperature helping you heal and decrease muscle spasms, pain, and inflammation to bone and soft tissues.