Rite in the Rain spiral notebook (metric- 363): Another great design in the Rite In the Rain outdoor stationery range. It comes with 32 leaves (64 pages) of RITR's all-weather writing paper- the paper designed to shed water, grease and grime. It has the metric design pattern (lined-columnar, and 2 x 2 mm grids on corresponding pages), and comes with a front project and contents page. The cover is Polydura (a unique felxible plastic) and has a wire double-O spiral along the side. This is a great feature that means you can open the book and fold it back-to-back (something not possible with the stapled and bound book models). So, they're prefect for jobs that don't require a bound book, making them great for student field trips. As with all the RITR paper products, for best results, use with a pencil or all-weather pen. It measures 122 x 178 mm.