The Transformer Cart is a fully collapsible cart used for Video- Sound and Remote Head. It is held together by four vertical posts which attach to a Bottom- Middle and Top Shelf by using telescopic locks operated with a5/32 Allen wrench. All accessories are attached in the same manner. Middle Shelf- Stand Holders- Handles and Rack Mounts can be adjusted to the desired height. TR-01 Shown with optional 9- Monitor Trays and 4-space Sliding Drawer with lock - Not Included.