When folded in half and stapled the outside dimensions are 2" x 2". The window ports is oval cut with a viewing area of 32mm x 25mm.

Fold and Staple coin holders are by far the most economical way to package you're U.S. and foreign coins for storage, filing, displaying or transporting. Made from a white-surfaced cardboard with a window of remarkably strong yet clear Mylar that allows you to see both sides of the coin. Not only are these holders chemically the most non-reactive, but they are also optically perfect. Quick & easy to use - simply insert a coin, fold holder over and staple. Then you can write the date, description, and condition of the coin on the plain white border of the holder.