I was disappointed at first when I found out they were 4 ring binders but found one on
ebay and the more I think about it I think 4 hole is the way to go. much more robust than the US standard 3 hole.
Thank you very much GeoffHa. I'm going to order one binder and the 4 hole punch and see if I like it. From the pictures the binders are absolutely beautiful and will really enhance the beauty of my collection.