This demonstration video discusses and shows the features of a Scuba Divers Log Book. While this log book may appear to be a bit basic, it has all the space and information you need to record your dive. It also has a equipment checklist page so you don´t ruin any dives by forgetting equipment at home. It features a general first aid page as well as care and maintenance tips for your equipment to make it last longer. It measures 4 1/4" x 5 1/2" so it will fit into a Ziploc bag if you bring it on a dive boat.