Leather Journal/Planner Cover in Navy Blue A5 size with pen loop, matching slate blue/grey elastic Italian vegetable tanned leather. A5: 16 cm x 23 cm (6.3 in x 9.1 in). INTERCHANGEABLE WITH POPULAR BRAND NOTEBOOKS A5: Compatible with popular brands like Moleskine Large, Hobonichi A5, Hobonishi Techo A5 Cousin, Leuchtturm A5, and others up to 22 cm x 15.5 cm (8.2 in x 6.1 in). New, never used.