I was very skeptical buying these peel and stick mosaic tile sheets. It turned out they are as wonderful as most reviews had stated. One thing you will need though is a straight edge cutter. You can buy these at Hobby Lobby and cost about $25. They make the job ten times easier. There is a video we used on YouTube where he shows you exactly how to do it with one of these tools. Very useful tutorial. Product looks wonderful and was very easy. One more tip. If you are running close to having just enough, get an extra box. I had a couple mistakes and found having extra was necessary.