External dimensions: 30 x 25 x 10 cm Interior dimensions: 27.3 x 19 x 8.5 cm Holds one without cover shelf: 25.6 x 17.46 x 0.99 and with Cover: 26.7 x 18.3 x 1.8 cm Very reasonable and yet convenient size to put a good size tablet with cover. I have not tested when it rains, some comments stating that the leather may rub off, so be careful.