The Fabrication Enterprises Relief Pak Cold nHot SensaFlex Compress offers instant relief for various discomforts. Its versatile design allows for both heat and cold therapy, providing soothing treatment for stiff necks, backaches, arthritic pain, and injuries. The soft, flexible fabric molds to the body, ensuring maximum comfort. The gentle, non-toxic gel remains pliable even when heated or chilled, providing effective relief without frost or crystallization. To use, simply heat in the microwave or hot water for heat therapy or chill in the freezer for cold therapy. The large size of the compress allows for ample coverage, making it ideal for treating larger areas of discomfort.