Security Parking Bollards:Stable Base Plate : The base is 6.5 x 6.5in (L X W),makes the yellow bollard post more stable and durable. Removable Bollard Post:Durable Steel：This safety pile is made of steel,which has high hardness,high strength and durability. Welded and integrated structure enables the bollard to withstand impact. Security Driveway Post Barrier:Easy Installation： The yellow bollard with 3 anchor bolts is easy to install in the bottom plate with 3 pre-drilled mounting holes. Assembly can save you energy and time. Safety Bollard Pole Barrier:High Visibility：Yellow powder coat pipe increases driver's visibility to enhance awareness and caution when driving and protects traffic barriers parking posts . Flexible Parking Bollard Post:Multi purpose：This guarded steel column stands in the vertical direction to improve the view and protect the entrance,parking lot,sidewalk,bicycle lane,etc. Commonly used in traffic sensitive areas.