These frames are called L shaped banner stand because when you pull up a banner to make it stand vertical there is a long silver L shaped frame at the back which is to be hooked to the top side of the frame and this keeps the banner vertical and in sturdy condition. This L shaped frame is quite strong and supports the banner well. 13 oz super smooth vinyl material with anti-curl property looks a class apart from the trade how. High-resolution graphics prints and quality and light aluminum metal make this banner stands very impressive and portable at the trade show. Our L framed banner stands to find good demand during the exhibition projects.