We have updated all upgraded models already, Marble wallpaper upgrades increase thickness and toughness,and compared to previous batch we enhanced brightness of the color, we recommended to purchase a sufficient amount at a time. FEATURES Self Adhesive marble wallppaer. No extra glue needed. Easier to use than traditional wallpaperProduct features Works on most any clean, and smooth surface Easily cuts to fifit Backing paper is printed with grid for guiding straight cuts Repositionable Easy to clean Protect furniture Repair surfaceHelpful Grid Lines & Easy Installation You will love how this paper is easy to measure and cut owing to the helpful back grid lines. Achieve your desired look by following the below installation steps: 1. CLEAN: Clean up the surface thoroughly, making sure that there is clean enough. Wait the surface DRY completely before the installation 2. Measure & Cut: Cut the film to the desired size through the grid lines. It is suggested to leave 1 inch margins at each side for later adjustment 3. Apply: Starting from one side, peel off the backing gently whilst applying the film to the surface inch by inch (do not remove the entire backing at once) 4. Flatten: While applying the film, use a cloth, a squeegee or a card to remove the bubbles or bump areas 5. Enjoy: Trim off the margins, enjoy your new gorgeous marble top surface