3dRose db_123976_2 90th Birthday Party with Chocolate Cake and Blue Balloons Memory Book, 12 by 12-Inch 11.5 x 11.5 Inch spiral bound hard covered 1 inch Twin Loop Wire Binding Spines 35 pages, 11.4 x 11.2 Inch - page thickness is 63lb cover Acid free bright white paper, non-coated paper Pages lay flat when book is opened