MAGNETIC DISPLAY FRAME: The sign holder is made of soft and PVC material for easy viewing, and the strong magnetic frame design allows you to quickly insert and replace. Our wall sign holders have a self-adhesive backing that adheres easily to any smooth wall and 't fall off easily. QUICK INSTALLATION AND REPLACEMENT: No tools or drilling required, simple to use, just peel off the white protective film on the back, on the smooth wall, open the front box, put in the picture of , and it's ready for quick installation and replace insert and swap the notification/picture you wish to display. Self-adhesive backing: The back of the magnetic sign is both self-adhesive and magnetic. It can magnet directly onto the steel of a refrigerator, whiteboard chalkboard or cabinet. Or you can to a smooth, solid , such as a glass wall. TRANSPARENT : Soft and PVC material protects paper from dust, water or moisture. These magnetic sign holders can be used on smooth walls, , elevators, metal doors, and more. PERFECT DISPLAY: This magnetic sign holder provides a beautiful and organized way to post information, pictures, notices, advertisements, product, certificates, awards, stores, offices, restaurants, supermarkets, schools, cafes, companies, Bank's Guide. Perfect for use around the home, displaying intended photos and artwork on the refrigerator or cabinets. size: 21 x 29.7cm Material: PVC colour: black Package Contents: 6 x photo frame Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.