Pretty straight forward here, the letters are 1" in size, they come with a couple extras for the most used letters. But it has the entire alphabet, numbers 0-9, and some common symbols. The stencils are a thin pressed cardboard type material. While they're not exactly built to last long term if you are careful with them they'll work fine.The reason I gave them 4 stars instead of 5 was simply because you have to punch out the precut pieces of each stencil yourself. Only takes a few mins and it's easy enough, but that's the only complaint here. Otherwise they're good to go.