Wire protector for sliding glass doors.

thingiverse

Ever found yourself stuck outside with a laptop or phone, desperately needing to run wires through a sliding glass door to plug in? Don't let that pesky door become a deadly trap for your laptop charger. This clever solution is like a small square doughnut that fits snugly between the rails of the door. Simply run the wire through this nifty little device, and you can safely close the door as hard as you want without worrying about slicing your cord in two. Two of them are needed, one for the inner glass door and another for the outer screen door to keep everything safe.