The P-FLEX Barrier provides excellent impact resistance combined with high flexibility. P-FLEX Barrier is available in diameters of 110mm and 170mm with a range of lengths as per the table below. The 170mm diameter product comes with a 40mm diameter reinforcement bar. The 170mm P-FLEX Barrier has tested impact energy of 16,100 Joules whereas the 110mm P-FLEX Barrier has tested impact energy of 6,200 Joules.