The lndie Dolly "universal Dolly", made of stainless steel and highest grade aluminum. Is our Flagship Tracking Dolly that works on straight track as well as on curved track. It Is adjustable In Size and doesn't require any tools for set up! (After lnitial adjustments) It Includes the Seat and Push-bar. Almost any tripod can be fitted on the Universal Dolly by using either the supplied receptacles or one of our optional receptacles. Studlowheels are also available. They are very useful when moving the tracks. Slide off the track-wheels and slide on the studio-wheels in order to roll the dolly on regular floor.