Defianz Book Stand Pro Buy direct from manufacturer. Defianz is a local US brand (company is based out of California) Unlimited tilt adjustments: Easily adjust the viewing angle from flat to straight 90 Extendable side wings: Allows extra room to fit large books up to A3 size in hard bound cover Good build: Super Sturdy, Super Comfortable and holds even thick books (not good for books A5 and smaller). Not a document holder. Ergonomic Design: Set it up once and forget it. Set it up near your computer screen and type away in comfort. Keeps the book open to the page you want & it's easy to flip pages as well.