Storm Tactical "Heavy Paper" Modular Data Book Storm Tactical "Heavy Paper" Modular Data books are printed on extra heavy duty 90 Pound Index Card Stock paper, in an easy to read size of 5.5" x 8.5" (half of an 8.5" x 11" sheet of paper). The book uses a 3 ring poly binder, which allows the operator to organize the book per mission needs. These books can be used with Rite in Rain waterproof pen, sharpie ultra fine point pen, sharpie extra fine point marker, uniball 207 style pen, other smear-proof pen, or pencil. Storm Tactical Heavy Paper Modular Data Books contain 200 pages, including: Come-ups, Dedicated Cold Bore, Cold Bore / Zero, Zero / Calls, Technical Reticle Hold, Torso, Special Target, Movers, Unknown Distance / Long Range, Range Card / Field Sketch, Sniper Observation Log, Round Count, USMC Click / Wind Charts, Information Pages with formulas, and Notes Pages. 9.2 x 6.6 x 1.2 1.4 lbs