Compatible with select Benro photo and video tripods, the Benro DL06 Tripod Dollyallows you to easily move your tripod across floor to quickly re-position the camera. It features three casters and independent wheel locks that lock the wheels from both rotating and rolling. Three large rubber feet with 3/8"-16 threads are included to accommodate smaller tripods when securing the dolly. The dolly has a footprint of 33.5" when in use, folds up to 21" in length for compact transport, and features a built-in carry handle.