?Solid and Safe?: Strong iron material and stable construction of the monitor arm laptop tray ensure a long-lasting and durable use experience, ensuring your laptops are always safe and secure. ?Hollow design?: This arm mount tray adopts a U-shaped design with a hollow in the middle, which helps dissipate heat from the laptop and prevent it from overheating. ?L-Shaped Blocker?: The bottom lip & non-slip pads securely hold the device in place, preventing the laptop from sliding and falling. Let us immerse ourselves in work!. ?Ergonomic Design?: This laptop tray will provide an optimal workstation whether sitting or standing at work, helping reduce posture-related problems such as muscle, wrist, and repetitive strain injury. ?Wide compatibility?: This notebook tray is a great addition to most VESA mounts with 100x100mm VESA pattern holes, compatible with Laptops from 6 inches to 17.6 inches within 28.6 lbs.