Burry Signs has sold many of these sidewalk sign frames over the years. To date we have not had a single complaint. The base is weighted and does not blow over or fly into on coming traffic in the wind. That is only one of the benefits to this frame. The double sided 24″ x 36″ sign face is changeable. Easily sliding into or out of a slot along the top edge. Welded on wheel assembly is also available for easy movement.