Package Content: you will receive 12 packs of spiral graph gird notebooks in black, each size is about 11.7 x 17.7cm/ 5 x 7 inches; The sufficient quantity will meet your daily needs, and you can also share them with your family and friends to use together, also suitable as a gift for who work in outdoors Waterproof Material: the all weather spiral notebook is made of 120 gsm stone paper, which is waterproof, oil proof and durable; The waterproof journal notebook cover is made of PP material; All weather paper won't turn to mush when wet and will repel water, sweat, grease, mud, hailstone, and even survive the accidental laundry mishap; The cover will defend your notebooks from scratches and stains, make sure your notebook stays right in the rain Suitable for All Weather: use a pencil or all weather pen and your notes will stay intact; Standard ballpoint pens will work when paper is dry; Water based inks will bead off sheets; Each page is printed with a grid pattern for flexibility; The notebook paper that does not tear easily even when pulled, makes your writings and drawings last longer Graph Paper Design: the spiral graph paper notebook are suitable for most types of pens;with 1/5'' squares, 5 per inch, quad ruled 5x5 which is ideal for math, plotting graphs, engineering class, kids drawings, personal journal, and more Wide Application: the tactical all weather spiral notebook can be applied for various occasions, such as hiking journal, outfitting your police gear, traffic control, diving or camping in the woods, golf journal, shower notebook, take notes and measurements in greasy and dirty maintenance environments, ornithology class, indoor freezer, suitable for working in the construction industry Features: Our waterproof notebook can protect your notes in adverse conditions and can survive water, sweat, grease and mud, can prevent you from losing important information recorded on the notebook. Our all weather notebook is suitable for writing in the field, so it is the ideal gift for anyone who works outdoors. Specifications: Material: 120gsm stone paper and PP Color: black Size: about 11.7 x 17.7cm/ 5 x 7 inches Package includes: 12 x Spiral waterproof notebooks Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.