Switch up the way you work by creating a more ergonomic desk environment with this efficient height adjustable desk riser from Vivo. The platform lists on top of your current desk and gives you the benefit of going from sitting to standing within seconds. Periodically standing throughout the long work day provides numerous health benefits including increased blood flow and reduced aches and pains. Featuring a smooth lifting mechanism for vertical height adjustment, a solid steel frame for excellent support, and this desk riser is ready to transform your workspace. It comes nearly fully assembled with just a keyboard shelf to add and then your set for hours of pain free work.Comes in a box that was opened but never used