<ul><li>Height adjusts from 3.5"" to 5"", angle adjusts up to 20 degrees for individual comfort</li><li>Large, non-skid foot surface provides added control</li><li>Sturdy durable construction 450cm x 350cm (WxD)</li><li>Textured foot grip panel helps prevent slipping</li><li>Tilts up to 20 degrees for additional comfort with convenient lockable tilt control</li></ul> Be a friend to your legs and back. Reduce muscle strain and fatigue by supporting your legs at an optimum angle. Height adjusts from 3.5" to 5" and angle adjusts 30° and locks into place with a simple press of the foot. It features a large non-skid surface.<br /><br /><p> </p>