This listing includes a total of four pieces: approximately three A4-sized sheets and one medium-sized sheet about half the size. Please refer to the photos for the sizes. The thickness is approximately 0.5 to 0.6mm. In my personal opinion, I believe it's a soft leather that stretches well. As these are leather products, there may be stains, scratches, and wrinkles. Please refrain from purchasing if you are sensitive to these imperfections. Please also refrain from asking for a price reduction. The last two photos are close-ups of the front and back. Please feel free to ask any questions in the comments.