Freely movable platform to promote blood circulation in the legs. Height adjustable in 2 steps (85mm and 105mm) and adjustable angle of inclination up to approx. 25 degrees. Textured surface massages the soles of the feet for relaxation. Platform size: 425 x 300mm. Made from 99% recycled plastic. 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).