This functional stand is suitable for screens up to 53.34cm (21") or max. 27kg weight. The height is adjustable in 3 steps (10 / 11.5 / 13cm) and non-slip rubber feet ensure high stability on any surface. Made from 100% recycled plastic. Integrated cable management keeps your desk tidy. Complies with BS EN ISO 9241, approved by FIRA International Ltd... (independent ergonomics accreditation body).