Q. What are the products you offer made from? A. Extremely fine stainless steel fibers embedded in nylon. No copper or magnets.   Q. Is it washable? A. You *can* machine wash the Farabloc (TM) material. For best results, line dry. However, if you are in a real hurry, it may be machine dried for a short period of time.   Q. How long do I have to leave it on? A. This product is drug free and has no undesirable side effects and can be left on for long periods of time. Most people have reported using the products two hours or more a day.   Q. How does it work? A. Farabloc (TM) interrupts the harmful effects of high frequency electromagnetic radiation. It lets the low frequency electrical waves pass through which stimulates blood circulation and may produce a feeling of warmth and relaxation.   Q. Do the products have to be covered? A. No, the wraps can cause a warm feeling and if you cover them it could make the wearer very warm, especially in the summer months. It is OK to put a cotton fabric between the person & the product to help it stay clean. It will not effect the efficiency of the product.   More about Farabloc (TM)