3dRose db_123363_2 Rainbow Tie Dye Colorful Art Memory Book, 12 by 12" 11.5 x 11.5 Inch spiral bound hard covered 1 inch twin loop wire binding spine 35 pages, 11.4 x 11.2 Inch - page thickness is 63lb cover Acid free blank bright white non-coated paper Pages lay flat when book is opened