For the Acer Iconia Tablet W4-820 I ordered the same the Acer Iconia W4-820 Crunch cover. It can be set via origami folding in various positions (three I found out) up. Sorry, no folding instruction was available. The tablet is held well by three plastic clamps and all buttons and ports remain easily accessible. For the lens of the rear camera, a portion is present. The outside is lined from PU leather and the inside is lined with microfibre and protect the surfaces against damage. I am very pleased with the Crunch cover and consider it advisable.