Using the Klein Tools 69190 Magnetic Hanger is a breeze. First, just find a suitable metal surface near your work area. Then, firmly attach the hanger to it using the strong magnet. Next, clip the hanger securely into the back of the rubber boot of your electrician multimeter. Make sure it's well - fastened so your multimeter stays in place. When you're done with your work, simply remove the hanger from the metal surface. As for maintenance, keep it clean and dry. If there's any dirt or debris on the hanger, you can use a dry cloth to wipe it off. Avoid exposing it to extreme temperatures or harsh chemicals as this could damage the durable nylon weave or the magnet. Also, be careful with the Velcro® loop and hook; don't pull it too hard to prevent it from losing its grip. With proper use and care, this magnetic hanger will serve you well for a long time.