Change your décor as quickly as inspiration strikes with Scotch Removable Mounting Squares. These convenient, double-sided squares let you mount your favorite photos, kids' artwork and to-do lists with their easy stick-on design that doesn't damage your surfaces when it's removed. Ideal for lightweight mounting like papers, photos, cards and more Use instead of push pins to keep your surfaces looking great Pre-cut foam squares for easy, mess-free application Double-sided adhesive bonds on contact Removes easily without leaving any residue on ideal surfaces Great for use on metal, glass, mirrors, smooth wood, acrylic, plastic and more Not recommended for use on wallpaper, delicate surfaces or walls painted with flat paint. May damage some substrates upon removal. Ensure your surface is smooth, clean and dry for the best bond Size: 1 in. x 1 in. Change your décor as quickly as inspiration strikes with Scotch Removable Mounting Squares. These convenient, double sided squares let you mount your favorite photos, kids' artwork and to do lists with their easy stick on design that doesn't damage your surfaces when it's removed. They're compatible with a variety of surfaces, from your walls, to your child's locker, to your office window. So keep on creating without regret with the undetectable secret assistance of Scotch Removable Mounting Squares. Color: Black 3M Scotch 1 Inch Removable Foam Mounting Squares, 16/Package Not recommended for use on wallpaper, delicate surfaces or walls painted with flat paint.Use four Scotch Removable Squares for each half pound (227 g) of weight to be held, and use only for mounting objects up to 2 pounds (900 g) maximum. Use for mounting lightweight objects only (i.e. posters, photos). Surface should be clean, dry and smooth. To remove flexible objects, gently peel back corner of object at sharp angle. To remove rigid objects, insert knife behind mounted object and cut foam between adhesive surfaces. Remove remaining material from wall and object by rolling off with finger. In extreme cases, soak mounting square with rubbing alcohol. Make light pencil lines on wall at key points around object to be mounted. Remove number of squares needed from the solid protective liner. Leaving the individual square protective liner in place, press squares into position on back of object to be mounted. Remove the second liner. Using light pencil lines as a guide, press object into position firmly on wall.