All paper - takes some thought/planning on how you make all of the creases/folds look crisp. I took a very light score along a straight edge with a brand new x-acto blade to make the folds more crisp. It makes folding and gluing a LOT easier.
Take your time, pre-read the instructions so you understand what you're doing before you are fighting glue because you won't be able to easily undo anything once the glue is in contact with the paper.