McKesson Cold & Hot Compress Reusable 6.75 X 10-1/2 Inch. Designed to provide hot or cold therapy. Conforms to body to help relieve pain and reduce swelling. Made with non-toxic gel; brought to temperature through microwaving, boiling, or freezing. Pack remains in a soft gel state to help ensure flexibility even when frozen. Designed for repeated use; cleans easily with soap and water. Not made with natural rubber latex.