The Best Sit or Stand Solution: Experience the advantage of a sit stand desk with Totnz. Whether you choose to sit or stand during your workday, aligning your screen closer to eye level can provide more ergonomic comfort.Powerful & Silent Motor: Quickly raise or lower your adjustable desk at a speed of 1” per second while making less than 50 dB of sound. Quickly change from sitting to standing position without wasting too much time or effort with manual adjustments.3 Preset Buttons: Enjoy fast motorized height adjustment from 28.3” to 47.2” with this ergonomic standing desk. Simply use the smart control panel to set your preferred height levels and save using the three separate preset buttons.Sturdy T-Shaped Legs: Purchase with confidence knowing that the strong steel legs of the standing desk support up to 176 lbs. The large 55” x 24” tabletop and 23” x 12” monitor shelf provide plenty of space to set up your computer workstation equipment.Anti-Collision Technology and Includes Detailed Instructions: The standing desk is protected from bumps and scratches with a sensor for detecting obstacles in the path of desk's movement. Also,Instruction booklet and hardware is provided for the electric standing desk installation.