PICTURE AND PAPER ONLY,like birthday cards,christmas photo of family.Super thin magnet tape 0.3 mm/12 mil.Please note that is WEAK magnetic force because thin thickness. Versatile Magnetic Strips: These thin, adhesive-backed magnetic tapes allow you to display paper cards on any magnetic surface like fridges, whiteboards.Perfect for cards,pictures on classroom, office, or home. Easy Application: The magnetic strips come in a convenient roll, Double side adhesive tape on non-magnetic side.Simple to cut and apply the desired length onto the back of your paper.Also this magnets can be work for DIY bookmarks with your amazing creative designs,please note our thin magnet tape with one side multi-poles magnetized,match magnetic pole well to make book page marker. Classroom Essential: Perfect for teachers and students to create engaging displays on white boards.Please note that is WEAK magnetic force because thin thickness. Dimensions: Each roll measures 3/5" width,60' length value pack.Thickness 0.012 inch PICTURE AND PAPER ONLY,like birthday cards,christmas photo of family.DIY magnetic bookmarks for kids,men,women DIY Magnetic Bookmark Guide: 1. Cut the Magnetic Strip into small pieces. 2. Align Magnetic Polarity: Ensure each 2 pieces has matching poles for proper attraction. 3. Attach to Bookmark: - Stick the first magnet on the side of the bookmark with adhesive backing. - Position the second magnet face to face on the first magnet(do not move it) - Peel off the release paper of second magnets and folded bookmark paper to assemble the adhesive side. together firmly.  *Result:Proper polarity is the point,test it before attaching. Perfect for DIY crafters!