【Sit-Stand Comfort】Easily switch between sitting and standing positions with full-motion adjustable arms and height adjustment, enhancing comfort and reducing fatigue for both home and office use 【Heavy Duty Construction】Built with a sturdy pole design that can be double-connected to the wall column, offering a stable base. Made of high-strength aluminum alloy, it supports up to 8 kg 【Articulated Arm】Provides excellent range of motion, tray can rotate 360° horizontally, 135° tilt (up and down), bracket arm 3-axis rotation, can rotate 135° horizontally, can be folded and unfolded at will 【Optimized Workstation】The stand features an intuitive, angle-adjustable keyboard tray (model B only) that folds 90° against the wall when not in use. The 24-inch wide keyboard tray accommodates a full-size keyboard and mouse, saving space 【Application Size】Wall mount laptop holder fits most 12-15.6 inch notebook/laptop and supports weight from 8kg. It also doubles as a monitor wall mount to hold computer screen from 13-30 inch in size with pattern 75x75 and 100x100mm