Most of the sturdy covers are made of a durable leather and the pages are a whiteboard with plastic coverings. In the larger albums, the pages can be a bit thinner than in the albums with fewer pages. This is so the greater number of photos can fit in almost the same amount of space in the book. Once a large album is filled with photos, you will not notice the thickness or quality of the pages. They must be somewhat thin to give the needed room for the many photos you want to put in it.