Customizable height: Base diameter is 13 cm: 13 cm (5 inches), pole diameter: 8.9 cm (3.5 inches); If the size you need is not in the list, you can contact us by email and we can make any size for you. Safety Bollard post parking bollard pile Parking Lock Parking Barrier traffic Steel Corner Guards security posts Road Cones warning column Guardrail High visibility: The surface of the parking column is designed with a high reflective film and is firmly adhered. It is not easy to fade or fall off after long-term exposure to the sun. It has a long-lasting reflective effect and improves driver visibility. Sturdy and durable: The stake is made of a combination of thickened stainless steel and a thorough welding process. It is durable and has maximum strength, durability, and resistance to oxidation, , and adverse weather conditions. Easy to assemble: The bollard with 4 anchor bolts is easy to install on the base plate, with 4 pre-drilled mounting holes, and assembly can save effort and time.