The anti-parking post require only bolting down to the ground before use, making them very simple to install and secure. Name: Parking sMaterial: galvanized steel pipeStanding Height: 500mm/19.7in, 600mm/23.6in, 750mm/29.5inColumn diameter: 76mm/3inBase thickness: 5mmScope of application: parking spaces, school entrances, driveways, commercial street isolation, highway intersections, parking lots, etc.Packing List: 2×Barrier stakes, 8×Screw Features:1. The is thick and durable, sturdy, thickened base, will not be violently damaged.2. Comes with reflective tape, the warning post color is eye-catching, highly reflective, and it is safer to drive at night.3. The four-hole screw base makes the overall stability of the parking column stronger and stronger. Note:1. Due to the heavy weight of parking s, some workers may leave it on the ground during the handling process. If parking s has slight scratches or dents, please understand.2. All products are manual measurement, there will be slight error, please refer to the actual product, I hope you understand.3. please contact us in time and reply to your email within 24 hours.