Footrest provides soothing heat above or below platform to promote comfort while seated. Smooth sliding track helps increase circulation in the legs and feet, while providing an alternative position to warm the tops of your feet. HeatSafe Power Button lights up for easy, hands-free operation. Auto-off feature turns unit off after 8 hours of use to help prevent overheating. Add-on legs elevate feet to help relieve lower back pressure and improve posture. Energy-efficient design consumes less power than a traditional light bulb (90 watts). Surface massage bumps help relieve work-related stress. Heat and Slide Footrest also offers rubber feet to hold the footrest in place during use. UL approved.