High Visibility Bollards - 139.7mm Diameter Constructed from 5mm mild steel coated black with two high visibility yellow PVC strips Diameter: 137.9mm Choose from 3 models: 900mm high fixed surface mounted bollard 1200mm high fixed surface mounted bollard 1500mm high fixed sunken permanent bollard Surface mounted models have 250mm x 250mm x 10mm base plate Base includes four bolt holds for fixing to concrete Fixings supplied