- Internal and external transparent pocket with hook and loop closure<br /> - Contains 23 reusable plasticized pages (6 of which with pre-printed tables)<br /> - Elastic pencil holder + compartment for storing the pencil + pencil in graphite<br /> - Elastic bookmark to mark a page for quick reference<br /> - Elastic eyelet for secure closure<br /> - Elastic cord for attaching carabiner<br /> - Ideal for underwater communication<br />">