Many users and potential buyers of the magnetic switch is afraid of losing the magnet. And it is also understandable, the magnet is the key. Without it, it’s hard to switch on and off the plane. This is why they created the Smart Magnet Holder. This solution can be clipped to your jacket or pants. The magnet is mounted on a retractable 75cm (~29.5 inch) line. That way you’ll always know where your magnet is.
Magnet and retractable unit, as shown in the picture.