They include two elevators with belts and ribbons, one on each side of the system, joined to the drive gearmotor with a telescope joint. Raceways are included for joining and supporting the jute belts up to the footrests of the systems and the return unit. Niagara also includes 2 conveyors and 2 towing heads with brushes for each level of the system. For these accessories the height of the head is such as to allow the aerial assembly of the egg centralisation, in addition to the traditional position on the ground. Egg carrier support shelves are included.