Adjustable desk riser offers a healthy addition to any desk, allowing you to sit or stand while you work. Large, 32" x 20.6" worksurface accommodates two standard monitors or a monitor and a laptop. Retractable keyboard tray slides in and out, rising with the unit. Side lever raises the desk continuously, reaching its maximum vertical range (over 16" above your desk), allowing a comfortable standing position. Gas shock effortlessly enables raising and lowering from sitting to standing. Riser is fully assembled for use right out of the box.Adjustable desk riser offers a healthy addition to any desk, allowing you to sit or stand while you work. Large, 32" x 20.6" worksurface accommodates two standard monitors or a monitor and a laptop. Retractable keyboard tray slides in and out, rising with the unit. Side lever raises the desk continuously, reaching its maximum vertical range (over 16" above your desk), allowing a comfortable standing position. Gas shock effortlessly enables raising and lowering from sitting to standing. Riser is fully assembled for use right out of the box.