Maximises desk space and reduces neck and eye strain by placing documents in a more comfortable, ergonomic position. Minimalist design and high quality clear acrylic. Six height settings for perfect viewing height (from 16 - 23.5cm). Holds both A4 and A3 documents up to a maximum weight of 6kg. Meets the ergonomic requirements for office activities with visual display units... confirmed by FIRA Int. Ltd, an independent ergonomics accreditation body (ISO 9241-5:1998).