Find your best view, save desk space, and discover your most productive self with the LX Dual Stacking Arm, Tall Pole. This multi-monitor mount lets you position large screens separately for a new level of flexible working. To add a third or fourth display, order the LX Arm, Extension, and Collar Kit accessory. To support a laptop, order the LX Notebook Tray. This monitor holder for multiple monitors allows you to position large screens separately, achieving a new dimension of flexible working. Additional flexibility: Each arm lifts, extends, and rotates for optimum work. More freedom of movement: Arrange screens up to 102 cm on top of each other or next to each other. Multi-purpose: Supports up to four screens with the LX Arm, Extension, and Cuff accessory kit. Slim design: The optimized appearance improves your working area. Easy storage: Foldable for storage in shelves or cabinets. Quality design: Designed for thousands of movements - tested in 10,000 cycle tests. Patented Constant Force™ technology: More flexibility, less force. Experience a comfortable viewing experience with Ergotron's exclusive, patented Constant Force™ technology. Position monitors, TVs, keyboards, or even complete workstations exactly where you need them.