the Fps-300 Flat-panel Slider Mount Provides A Simple, Stationary Or Mobile Wall Mounted Unit Utilizing A Motorized Lifting And Lowering System To Help Gently Glide The Display To The Desired Height. A Great Option For Educational Use In The Classroom Or Training And Information Sessions, The Flat-panel Mount Uses Steel Channels To Mount The Display Over The Top Of A Whiteboard. The Mount Easily Glides The Display Across The Whiteboard And Rolls The Display Into Place.