Sidewalk Signs! The fast and easy solution for your sidewalk display requirements. Sidewalk Signs are made to the highest industry standards and specified by leading organizations every day. The double-sided A Board consists of two snap frames, offering weather resistant aluminum and Super White Translucent backing (not cheap MDF or hardboard backing- which will rot). Strong, yet lightweight and easy to use. The front snaps open on spring hinges to change posters- no tools required. Flexible P.E.T. lens offers non-glare and UV protection. This is the industry standard- we supply the world's leading brands- Disney, NASA, Red Bull, ABC, etc.