Waterproof Twin Magnetic Case - for Optimus 2.0 GPS Tracker - GPS Tracker not Included

Neodymium magnets are the strongest type of permanent magnet commercially available. And we added two! This water tight box with twin magnets is great for holding and protecting your GPS Tracker. Its inside dimensions (3.2x1.5x1.8 inches) will hold the best trackers. (View Images) Used by law enforcement and private detectives, it is surely going to work for your application. Works Great as a key holder box or anything you can think of.