Doctor's recommended. Stays cold up to 8 hours. Hands free cold therapy. Patented technology. Non-toxic and latex free. Cold therapy comparison: Ice & other home remedies. Lasts up to 30 minutes; Standard cold pack. Lasts up to 45 minutes. Insert into the comfort wrap. Place in the freezer. Apply to the affected area. Completely non toxic. Latex free. Flexible when frozen. Before use carefully read instructions. Save instructions for. Future reference. For Soothing Relief of: Chronic pain; pain after surgery; sprains; itching and burning; swelling; arthritis; fever; migraines.