【Height Verticle Up and Down Transition】 Gas spring hovering over system keep the desktop up and down smoothly.Convert height from sitting to standing by lifting up the lever lightly.Range from 21.7"and 16.9" 【Spatious Desktop】A spacious beautiful wood testure surface is waterproof,corrosion resistant, anti-cracking and easy to clean.Used for tablet,laptops,monitors, paperwork and oversized desktop computers with accessories like keyboards and mouses. 【Heavy Duty Structure】Equipped with a thicken rust-resistant steel base and frame, no big shaking in use.It can hold up to 28.66 lbs. X-Shape structure is sturdy enough to hold all the work needed accessories, essentials, keyboard, monitor etc. 【Tool Free Setup】Basically only tray need to be installed. This stand up desk converter can be placed on virtually any flat surface or desk without slipping. NO Tool needed, without the help of a handyman. 【Health Benefits Tips】Go from sitting to standing in one easy smooth motion. Help your balance throughout the day. We offer 1 month no reason refund and replacement and lifetime Support Service for Standing Desk.