Brady 103569, Heavy Duty Flexible Sign Post, 5' H x 8" W x 8" D, Polypropylene, WhiteBrady 103569, Heavy Duty Flexible Sign Post, 5' H x 8" W x 8" D, Polypropylene, White Heavy duty polypropylene sign post is equipped with reactive springs to endure collisions. Flexible posts come with a unique hinge that allows the sign to withstand impact without damage 8 in. x 8 in. base can be mounted to asphalt or concrete Best for use in high traffic and high speed areas Sign mounting hardware and post installation kit included Post diameter is