The RDB1 RailDolly Camera Dolly Kit from RigWheels is designed for use with full-size broadcast cameras and other cameras of the same size. It can also be used for critical audio recording due to its quiet operation and semi-soft wheels. The kit includes one dolly carriage, two universal end brackets and two ball head adapters. The dolly carriage is comprised of one rig plate, two rig axles and two different types of skate wheels. The two different types of wheels allow the rig to perform on both square and rectangular rails.