Get more active and productive by giving yourself the option to now stand at your existing desk. Large single-tiered surface area accommodates laptops and monitors. Smooth lifting and height adjustable up to 16 inch. Notched back can accommodate most standard monitor arm kits (designed specifically to accommodate Alera Monitor Arms). Smart ergonomic design lifts and lowers within the same plane on your desk surface, so you do not need to step back and away in standing position. Durable steel base construction for long-lasting performance. Non-skid silicone pads protect your work surface from scuffs and scratches. High-quality top surface is water- and dent-resistant. Ready out of the box so no installation required.