Ergonomic Design This armrest extends from the edge of the desk, fully supporting and relaxing your arms to improve your working conditions. After many improvements, the best ergonomic solution has been found, which can greatly relieve neck, shoulder, arm and wrist pain and reduce elbow pressure by up to 90%.Easy to Install Pre-assembled design, just tighten the screws to complete the installation preparation in one minute. The manual button supports quick installation and disassembly, allowing conversion to multiple scenes. The no-drill installation method ensures that the desktop remains intact.Foldable and rotatable design This computer desk extension tray is designed to be foldable and rotatable. It moves with you when in use, and can be folded 90 degrees for storage when not in use, perpendicular to the desktop and will not take up space. It can be used with both hands, effectively relieving stress on the shoulders and arms.Versatile applicability Whether used in the office or at home, this armrest is an ideal choice. It not only improves working comfort, but also reduces physical discomfort caused by long hours of work. It is suitable for various occasions where long-term computer use or delicate manual operations are required, helping users maintain good posture and improve work efficiency.Sturdy and Durable Construction The armrests are covered with thick cloth pads and high-density foam, which is super soft and comfortable on the skin. Adopt stainless steel K-type double support frame, which is very strong and durable.