Snap frame The easy-to-open aluminum poster framing allows for effortless changes. Simply open all four spring-loaded frame sides, remove the protective covering, replace your graphic and snap down sides. The four black multi-faceted corners and trim line framing create a sleek, seamless appearance. Supplied with a clear, anti-glare acrylic cover and a unique back panel that doubles as a support panel and dry erasable markerboard surface. 1. poster board or poster photo frame or snap frame; 2. from A0 to A4 size available in our factory , customized size available ; 3. material: snap aluminum profile (with spring sheet), can be open and closed freely;3mm thick plastic sheet or wooden board or aluminum-plastic panel ; with water-proof PP layer ;sunshine resistance PP layer ;hook fixed on the back of poster board;