This large camo notebook is just a tad bit bigger than our smaller geobook. At 2x4, it fits nicely in any of our lock and locks that are larger than 300ml.  Each large camo notebook is made of rite in the rain paper (meaning yes you can write on it when it's wet) and comes in a zip-top baggie for extra protection.  One of these notebooks come included in each of our larger sized Lock-N-Lock containers.

More Pictures: