Using this Draper cable extension reel is easy. First, choose whether you want to mount it on the wall or ceiling using the provided bracket. Make sure the surface is sturdy enough to hold the reel. Then, simply pull out the cable to the length you need. Thanks to the patented position lock, you can stop the cable at any point. When you're done, let the cable retract back into the reel gently. As for safety, always check the thermal cut - out switch regularly to make sure it's working properly. Avoid overloading the cable. For maintenance, keep the reel clean and dry. If the case gets dirty, you can wipe it with a soft, dry cloth. Remember, this product comes with a 1 - year warranty, so if you have any problems, contact the customer service.