STURDY STEEL-This cold rolled steel is a very strong metal that can withstand rain and sun and can be used for a long time in hot sun or wet weather without fading and rusting. HIGHLY REFLECTIVE-Bright yellow reflective strips improve driver visibility to increase alertness and caution when driving and increase visibility at night. Thickened Base-5mm steel plate is also used for bending which is and the corner design will not hurt the tire. Easy Installation-There are 4 holes on the base you can fix the bollard on the ground with screws quick and easy to install. WIDE APPLICATIONS-Suitable for commercial or residential parking brakes can effectively prevent parking brakes from being abused or stuck and is a powerful parking management assistant for high-end residential areas shopping malls hotels office buildings etc.and airports.