US Patent 8002493 Flexible route marker

A flexible marker post assembly having a base, first and second members of an elastomeric material secured to the base and extending upwardly therefrom, the first and second flexible members each having respective first and second side walls with a concave recess formed on each of the side walls, substantially rigid post mounted intermediate of an upper portion of the first and second flexible members with the post having a lower end secured to an upper portion of the first and second flexible members. The provision of concave recesses permits a better bending action when the post is struck at an angle.