I bought these because I'm building a house with a concrete porch and I suck at finishing concrete. These stamps were very easy to use for a first time concrete stamper. Poured the concrete, ran an edger on it, dusted it with release powder, and stamped it in. I used a hand held compactor on a 6'x40' porch and it turned out great. It took a minute to figure out how the four pads were supposed to go together but I puzzled it out days before we poured the concrete. I was very pleased with the finished product and have had many compliments on it. It looks great.