【Four-hole base】The four-hole screw base makes the overall stability of the parking column stronger and stronger. 【Strong reflective】The yellow honeycomb reflective film is easy to see,that allows for visibility in low light or at night. 【Product height】500mm/600mm750mm;Product diameter：76mm;Tube wall thickness:2mm.（Package Includes:2x Parking Space Lock;8x expansion screws） 【Process upgrade】Fixed safety bollards,integrated technology,sturdy. 【Scope of use】municipal road isolation,separation of people and vehicles in residential areas,urban roads,safety protection,etc.