A4 size is more practical: 11inchx8.2inch (28x20.8cm) size, more than the general 7.2 x 5 inch in the market, more practical, 50 sheets of A4 size rainbow art paper, can be cut at will, more cost-effective; Holographic rainbow art scratch paper: Different from the general rainbow scratch paper on the market, we have both regular scratch paper and laser scratch paper to choose from. Rainbow laser scratch paper has flash and laser effects, thicker and more textured paper, more interesting and fun; Carve out different colors: Scratch Paper is widely compatible with laser engraving machines and laser marking machines, giving your engraving patterns colorful colors. It is recommended that the laser engraving machine parameters (4500-5000 speed, 10%-15% power), you can also cut into different shapes, such as animals, colored eggs, spiders, witch hats, etc., and engrave patterns on the cut shapes; Exert artistic creativity and imagination: Each piece of scratch arts drawing paper is large and durable enough to carry out detailed and expressive painting. You can use the attached stylus to scratch and write, or use the engraving machine software pattern to create imaginatively; Best craft gift: Scratch arts painting paper is a great gift for anyone.Fun and cool creative craft gifts for birthdays, party favors, Halloween, Christmas, Easter, Thanksgiving, Father's Day, Mother's Day, and outdoor trips, etc.; 3 OPTIONS: 5 Single Color Rainbow Rainbow Laser WIDE APPLICATIONS: Postcards Decoration Bookmarks Colour:As shown Material:Paper Package Contents: 50 * Scratch Paper 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.