M.A.S.S. base unit is a steel barrier consisting of hot dip galvanized elements powder coated in highly visible safety colours. Individual base units are 150 cm long x 50 cm wide x 42 cm high and weigh 48 kg. Each unit links together via vertical pins. The various M.A.S.S. top sections can be added as specific jobs demand. Specially adapted units enable the system to rotate through 180°.
When an errant vehicle drives on to the base of the system, it helps to stabilise the barrier during impact. M.A.S.S. 1 has been fully tested to T2 W5 providing protection to work force, vehicle drivers as well as pedestrians.