BannerSaver

On the new lamp posts at Lincoln Park, we couldn't figure out what the horizontal arm was.  A Wi-Fi antenna, a temperature sensor or a listening device were a few of our way-off guesses.  It would have been obvious if the lower arm was in place, which we're assuming was taken off to limit theft.  These arms and the spring-loaded brackets attached to the poles are to hang banners.  This system from BannerSaver allows the banners to flex as it gets windy, saving on wear-and-tear and extending banner life, as shown in the cool demonstration video at this link.

https://vimeo.com/155769862