To ensure this cart would meet the needs of instructors, it was designed by instructors. As classroom set ups have changed, this cart has become a great asset for any school. Whether the instructor is presenting in the gym, cafeteria or any other type of "classroom", this is the cart they need...and want. One key secures and locks equipment access door, drawer and projector door. Large storage drawer. Optional electronic lock available. Laminate top provides smooth writing surface. Slide out shelf provides an additional presentation surface. AV equipment provided and installed by end user.