Made of Real Glass and Copper - not vinyl the Peel & Stick Glass Mosaic Tile Bamboo is a DIY (do-it-yourself) product that combines glass tiles and the latest peel & stick technology suitable for kitchen backsplash. One of the greatest advantages of this self-adhesive tile, it is the ability to lay it on the wall without using any kind of cement or setting material, which is a huge time saver. After you attach it to wall, you may apply a pre-mixed grout(not included) without waiting until the next day, which is the normal process time when using a common thinset (type of cement used for installing tiles).Each individual tile measures 1x1 and mounted on a 12x12 fiberglass sheet.