Steel Safety Bollards 42Inch High Bollard Post In Ground Removable Barrier Posts with 16 Bolts Outdoor Traffic Barrier for Crowd Control Area|4.5Inch Diameter 4pcs

["Solid Construction Bollards：Built with Q235 industrial-grade steel, these bollards feature a 4.5\" diameter pipe (0.12\" thickness) and fully welded structure to withstand impacts from vehicles.","Tool-Free Installation:DIY-friendly setup in minutes! Each bollard comes with 4 pre-drilled holes and 4 bolts. Just secure the base plate, tighten the bolts, and you're done - no professional help needed.","High-Visibility Safety Yellow:The powder-coated reflective yellow finished parking barrier ensure 24/7 visibility. Resists rust, fading, and UV damage for long-lasting performance.","Removable Design for Flexible Use:Create temporary or permanent barriers on concrete/asphalt surfaces. Ideal for traffic control, pedestrian safety, or protecting storefronts from vehicle intrusions.","Customizable Sizes for Any Space:Choose from 36\"/42\"/48\" heights and 4/6/8-pack bundles. These metal parking bollards are perfect for parking lots, schools, bike lanes, or warehouses. Tailor your security solution!"]