This 3 1/4" x 5" Mini-Spiral Memo Notebook is pocket-sized and repels water from its pages allowing notes or instructions to be taken during a wet-weathered emergency. The Mini-Spiral Memo Notebook includes 100 pages (50 sheets) of writing space and can be used with any pencil or the Rite In the Rain® All-Weather Tactical Black Clicker Pen (72087).