The LX Dual Stacking Arm saves desk space and positions monitors for the most comfort and productivity. This dual monitor mount uses patented Constant Force™ technology for easy adjustment. Up, down, forward or backward, an LX monitor arm adapts for your best view. Independent movement for each arm creates a new level of monitor placement flexibility. Made of durable aluminum and steel and put through rigorous quality tests, it’s backed by an industry-leading 10-year warranty.