The Hardstaff Barriers/Asset International M.A.S.S. base unit is a steel barrier consisting of hot dip galvanized elements powder coated in highly visible safety colours. The MASS barrier system is easily installed by 2 people and with it being steel as no water management costs. 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°.