A Charley Bar is a reinforced center-point that is very difficult to breach. Now no system is fool-proof, but like “The Club” for your steering wheel, a charley-bar is enough of a deterrent, that most burglars will move on to the next house. GACC member Mobile Screen & Glass Inc. will do the installation.
Vacation with a little more peace of mind when you install a Charley Bar to secure your sliding doors. https://mobilescreenandglass.com/.../stop-burglars-with.../
Original source can be found here.