Cute Young Black Haired Girl Reveals Her Panties In The Bedroom With A Sliding Door Wardrobe

The mechanism used to operate a sliding door is called sliding door gear. There are two standard types, top hung or bottom rolling systems.
Top hung sliding doors
The 'top hung' system is most often used. The door is hung by two trolley hangers at the top of the door running in a concealed track; all the weight is taken by the hangers, making the door easy to move.