4 mil 4"x6" Recloseble Bags: 10 Pack
This 4" (10cm) x 6" (15cm) reclosable zipper plastic bag fits the full size log books perfectly. They are nice and thick so they won't tear or end up with holes after they have been openned a few times!
I carry some in my caching bag to do cache maintenance!
10 bags for $2.00