Black Bull 76mm Flex Hoop Warehouse Barrier Guard RailThe Black Bull Flex hoop barrier is perfect for installation in areas where collisions are almost guaranteed. We recommend the Flex barrier as it incorporates a flexible foot that absorbs impacts, preventing damage to the floors. Damage occurs typically when the fixings are levered out of the floor, causing significant damage to floor screeding. The Flex hoop can deflect up to 10 degrees from vertical; this prevents the fixings from being overloaded.