The front, back, AND the spine are customizable by inserting personal artwork into the clear plastic covers.

The binder itself is made of durable plastic and the rings have held up well so far.

The soft plastic "envelope" just inside the front cover holds pens, pencils, rulers, and other handy objects

I have a flexible plastic 8" ruler that I received with my Thomas Kinkade Painter of Light with Scripture 2013 Hardcover Engagement Calendar.