Built for the elements, the Okina Project Paper Waterproof Notepad is your go-to for writing in tough environments. Whether you're outdoors, on-site, or preparing for emergencies, this notepad keeps your notes protected and legible—even when wet. When using a pen with pressurized ink, you can even write underwater. Key Features: 100% Waterproof Paper: Made with durable Yupo synthetic paper that resists water, wrinkles, and tearing. Optimized for Field Use: Perfect for outdoor activities, emergency preparedness, mountaineering records, and site-based work. Easy to Handle: Twin-ring binding allows the notepad to be folded back flat in your hand—ideal for quick notes on the go. Important Note: Works best with pencil or mechanical pencil when paper is wet; oil-based pens and ballpoint pens can only be used when paper is dry. Specifications Specifications Details Dimensions Orange B7: 73 × 118mmPink B7: 78 × 120mm Number of Pages 40 sheets Paper 5mm grid Material Paper