Grass And Foliage Collector: 
    "MORGNIEUX" grass and foliage collectors with a low noise turbibe are
    created  for a professional job. The container is made of plastic. The system
    is mounted on tractor rear lift system Cat. 1 and driven by tractor rear power
    take off 540 rpm.
    Volume of container: 530 litres and 800 litres.
    For both types a hydraulic ground dumping is standard.
    Options:     Support wheels for smaller compact tractors.
    Hydraulic high dumping.
    Additional light 

 In this PDF file ou find more technical information.