The Benro DL06 tripod dolly allows your photo or video tripod to be mobile and is ideal for quickly repositioning your camera. Your foot can operate the wheel locks and they lock both wheel rotation and roll. Three large rubber feet with 3/8″-16 thread are included to accomodate smaller tripods when securing to the dolly. The dolly folds up to 21 inches for easy storage and includes a carry handle. The diameter of the dolly is 33.5 inches when in use.