3dRose Balloons with Purple Banner Happy 3rd Birthday-Memory Book, 12 by 12" (db_174867_2) 11.5 x 11.5 Inch spiral bound Glossy hard covered 1 inch Twin loop wire binding spine 35 unlined pages, 11.4 x 11.2 inches - page thickness is 63lb cover Acid free blank bright white non-coated paper Pages lay flat when book is opened