OMS Complete Underwater Wet Notes Notebook A24918001 OMS Underwater Notebook, frequently called ?Wet Notes?, provide a Simple to Use, Neat & Convenient method of writing notes for future reference while Diving & also an efficient way of communicating with other Divers in your Group. High Quality Nylon Outer Case with Elastic Securing & Page Marking Loops & Bungee Ring for simple attachment to a Convenient point on other Equipment. 30 Pages of Waterproof Underwater Paper, which can be replaced when completed. Underwater Pencil on Elastic Cord & Holder, Clear Pockets for Dive Tables etc. with Velcro? closure & a Clear Vinyl Pouch inside the Back Cover. Designed for use by Divers, but also perfect for any use on the Water. Measures approximately 20cm - 8 Inches X 13cm ? 5 Inches X 2.5cm ? 1 Inch & Weighs 0.2 Kgs.