Footrests keep legs elevated for improved posture and circulation while you work at a desk and help reduce pressure on the lower back. They are easily adjustable for extra comfort, while there is a range of specifications available to suit individual requirements. Tilts up to 20 degrees for additional comfort with convenient lockable tilt control Textured foot grip panel helps prevent slipping Sturdy durable construction 450cm x 350cm (WxD) Height adjusts from 3.5″ to 5″, angle adjusts up to 20 degrees for individual comfort. Large, non-skid foot surface provides added control.