Can be used as a bookmark on a book page or as a category label. The corrugated corrugated paper is made of F wave material, and there is no impression and presence on the lightweight paper. Plain paper can be free to write and draw pictures, or personalized decoration with adhesive tape. Can hold about 10 sheets of 70gsm photocopy paper. Six style choices to meet your desire for classification. Contents: 20 pieces / box, square type 14 pieces / box Size: 3x5cm / piece, square type 4.5x4.5cm / piece Material: Recycled Kraft Corrugated Paper Printing: cover letterpress printing Note: Due to material processing, the black spots on the paper surface and the paper edge contacts are normal.