Change signs in seconds with the Quick-Change™ feature. Signs easily slide in and out with rigid sign material 3/16” thick or less. Stay Tabs™ ensure signs stay securely in place. No maintenance needed and it is all plastic. This is use indoors and outdoors. No tape, Velcro®, or screws needed. Can internally weight with sand – ballasting columns, add sand to each leg. Hinges lock in open position and prevents over-extended sign faces.