They’re advertised as 12x12, but keep in mind that the overlap loses 2” for each sheet, so it’s only 10” wide. Color was spot on. Nice and shiny, easy to wipe clean. Applying them is tricky however. Aligning is difficult but if you do get them lined up, they look great. If not, the ‘grout’ lines look too thick, too thin or just wonky. Make sure to read the instructions. Don’t peel the entire backing off at once—just a little at a time pressing air bubbles out as you go. If you take your time they can be very nicely done.