The Aluminum Camera Case Cart is a fully collapsible cart. It is held together by four round posts which attach to a bottom and top shelf by using telescopic locks operated with a 5/32 Allen wrench. All accessories are attached in the same manner. Top Shelf is adjustable and can be set at any height. The wheels are detached by sliding them out of a rail unit secured by a hex screw and safety button. Cart breaks down to a self-contained travel case. Note: TR-04 and TR-04 JR Carts come A.C. ready.