Size: The inner size of the frame is A3, suitable for A3 (420mmx297mm) size documents. Material: Made of soft PVC material and magnetic frame, documents can be changed quickly and easily, and can be placed in landscape or portrait orientation. Easy to install and use: The A3 magnetic self-adhesive frame is in the form of full back adhesive tape, which makes the whole magnetic frame firmly adhere to smooth and flat walls or glass. Magnetic strip frame allows quick insertion and replacement of documents. Protective Features: Comes with a transparent protective film that is both waterproof and moisture-proof to safeguard displayed items. Wide range of applications: can be used for posters, photos, pictures, documents, certificates, etc. A great tool for displaying advertisements or displaying notifications for shops, restaurants and supermarkets.