Leuchtturm1917 Slim Master Hardcover Notebook, 9 X 12.5 inches, 121 Dotted Pages with Whitelines Link, Black (345310) Leuchtturm 1917 has partnered with Whitelines LINK Use with Smartphone app to digitize your pages No interference between the background and pen color Features a durable hardcover Measures 9 by 12.5 inches and includes dotted paper