Six Height Adjustable Foot Rest: Our ergonomic footstools have six different heights(3.1'', 3.9'', 4.9'', 5.7'', 6.5'', 7.3''). Suitable for different heights of office desks and chairs. It can help you find the most comfortable sitting position. The height of the panel can be easily adjusted by turning the adjusting screws on both sides. Ergonomic Foot Rest Under Desk: Our Footstools elevate your lower body's center of gravity, keeping your spine at a healthier angle. Using an under desk footstool also helps to relieve back stress and pain, reducing fatigue caused by sitting for long periods of time, making you more enthusiastic and energized every day. Under Desk Foot Massager: The panel of our office chair foot rest has rows of massage particles and four small massage rollers. Massage the soles of your feet, promote blood circulation, relax the nerves to relieve your work pressure. Sturdy Footrest: The office footstool is made of high quality material acrylonitrile butadiene styrene (ABS). It can withstand a load capacity of 50 LBS. The footstool has non-slip pads on the bottom to prevent slipping. Variety of Application Scenarios: The footstool is detachable. When disassembled, it is small and easy to carry. Whether you are on the airplane, in the office, at home, in the car, traveling, or playing computer games, you can enjoy this massage footrest anytime, anywhere. ZLMHYYM Foot Rest for Under Desk At Work - Six Heights Adjustable Under Desk Footrest - Ergonomic Foot Stools for Under Office Desk - Desk Foot Rest with Massage Rollers - Leg Rest for Chair (Gray)