This durable nylon cover for the logbook is a great way to protect and store your logbook, as well as aviation charts and pilot certificates. The main compartment can hold logbooks up to 6-1/2" x 11" and is perfectly suited for the standard ASA PilotMaster logbook. A second inner pocket provides a convenient place to store aviation charts. Four transparent vinyl pockets allow you to store pilot and medical certificates, credit cards, and other smaller paper or plastic documents. There is also a loop on the inside for holding a pen or pencil. The hook and loop closure system ensures the security of the contents.