The Focus dolly is a complete lightweight, ultra-portable dolly. It assembles in less than three minutes, and the design incorporates dual features. When closed down, the dolly becomes a portable flight case, the push/pull handle functioning as the transport handle. The dolly track wheels or hard rubber wheels simply pop in the sockets of the dolly. The track wheels, which operate on both curved and straight track, are stored inside the dolly case for transportation. The Focus Seat Support completes the focus dolly as a multi purpose package.