Each Elan Mining Transit Field Book consists of 80 sheets (160 pages).  The left hand page is printed with 6 columns while the right hand page is printed with an 8 x 8 to the inch grid.  Specially formulated 50% cotton ledger paper is protected by a water resistant surface.  Each field book comes with a bright orange or yellow cover, and 15 pages of curve tables and trigonometric functions.  Size: 4-5/8 x 7-1/4".  Shipping weight per book is 12 oz.  Price shown is per book.