Name: s For Driveway Parking Pole Material: Steel Pipe Galvanized Height: 750mm/29.5in Column diameter: 76mm/3in Thickness: 2mm/0.08in Base diameter: 135mm/5.3in Name: Barrier Chain Material: Plastic Colour: Black and Yellow Length: 5m/16.4 foot Diameter of the plastic links: 6mm/0.2in Plastic Chain With 2 plastic hooks ? FEATURES: 1. DURABLE DESIGN: Each is made from strong and sturdy steel for maximum protection. 2. Protect your valuable equipment and merchandise from forklifts, reach trucks, and other warehouse machinery. 3. The hanging ring is welded very firmly, it is easy to pass the chain through the hanging ring. ? PLEASE BE AWARE: 1. There are no screws for the pillars, please purchase the screws separately. It is recommended to buy expansion screws for concrete floors. Steel nails are recommended for asphalt ground. 2. In long-distance transportation, post cannot avoid bumps. If post has slight scratches or dents, please understand. 3. Due to the difference in shooting angles and pixels, the pillars will have a slight chromatic aberration. 4. If you have any questions or concerns, please contact us and your email will be replied within 24 hours.