Boorum & Pease 2115012 Columnar Accounting Book, 12 Column, Black Cover, 150 Pages, 8 1/8 x 10 3/8 Sold as 1 EA. Smyth sewn for durability and a flatter writing surface. Premium white, acid-free paper. Permanent, waterproof inks. Unit ruled, numbered pages. Undated for flexibility.